Justify can mean show that a decision is reasonable, support a claim with evidence, or align text on a page. Defend, substantiate, and give reasons fit the first two senses. For example: Please give reasons for moving the session to Friday. Explaining a decision helps people understand it, but does not automatically establish that it was right.
Choose a word that matches what you need to support: a choice, a factual claim, or a judgement. Formatting uses of justify require a different kind of replacement. These 29 alternatives include 124 original example sentences, with four or five examples for each entry.
Give reasons means state why an action or choice makes sense.
Present reasons in favour
Make a case
Make a case means present reasons in favour of a proposal or judgement.
Add independent supporting information
Corroborate
Corroborate means support an account with additional, independent information.
Respond to criticism with reasons
Defend
Defend means argue in support of a position facing criticism.
Maintain a decision or principle
Uphold
Uphold means maintain or support a decision, standard, or principle.
Give a basis for reasonable defence
Make defensible
Make defensible means provide a basis on which a decision or claim can reasonably be defended.
Explaining a choice
1. Give reasons
Give reasons means state why an action or choice makes sense. It is a plain alternative for meetings, lessons, and everyday requests. Use give reasons for something or for doing it. The phrase asks for an account of the reasoning without assuming that the explanation will convince everyone.
State why a choice makes sense.
Please give reasons for changing the speaker order.
She gave reasons for choosing a smaller room.
The tutor asked us to give reasons for our answers.
We gave reasons for postponing the recording.
The organiser gave reasons for keeping the registration window open.
2. Explain
Explain means make something understandable by giving detail or reasons. It can replace justify when someone needs to follow a decision, but it does not necessarily defend that decision. Use explain something to someone, or explain why. An explanation of what happened may still leave its acceptability open.
Could you explain why the booking changed?
He explained the revised arrangement to the volunteers.
The letter explains the reason for the delay.
She explained why the first draft was shorter.
His reply explains why the two sessions use different formats.
3. Account for
Account for means explain a cause, discrepancy, or action. It fits a report where readers need to understand how something occurred. Use account for a difference or account for doing something. It is a contextual substitute for justify, since identifying a cause does not necessarily make the outcome acceptable.
The missing receipt accounts for the difference.
He accounted for the extra preparation time.
Can you account for the empty section?
Her note accounts for the revised estimate.
The changed route accounts for the longer arrival time.
4. Offer a rationale
Offer a rationale means provide a reasoned basis for a choice. It suits professional or analytical writing where the decision needs an explicit explanation. Use offer a rationale for something. It is more formal than give reasons, but the word rationale should introduce actual reasoning rather than stand in for it.
Provide a reasoned basis.
The report offers a rationale for the sequence.
She offered a rationale for limiting the group size.
We offered a rationale for retaining the original title.
His introduction offers a rationale for the comparison.
We offered a rationale for separating the practice groups.
5. Explain the reasoning
Explain the reasoning means describe how someone reached a conclusion or choice. It is useful when the steps of thought matter more than defending a result. Use explain the reasoning behind something. This phrase can preserve uncertainty and is often less confrontational than asking a person to defend their decision.
Please explain the reasoning behind the timetable.
Her answer explained the reasoning behind the estimate.
The tutor explained the reasoning behind the exercise.
He explained the reasoning before naming his preference.
She explained the reasoning behind using anonymous questions.
6. Make a case
Make a case means present reasons in favour of a proposal or judgement. It is a natural phrase for meetings and persuasive writing. Use make a case for something. It implies advocacy rather than a neutral explanation, and it does not guarantee that the audience accepts the proposed conclusion.
She made a case for an earlier rehearsal.
The group made a case for retaining captions.
His talk makes a case for shared preparation.
We made a case for changing the room layout.
The students made a case for a second workshop.
7. Set out the grounds
Set out the grounds means state the basis supporting a decision or request. It is formal but useful when readers need clear, identifiable reasons. Use set out the grounds for something. The phrase concerns the supporting basis, so it should be followed by particulars rather than a general claim of confidence.
State the supporting basis.
The note sets out the grounds for reconsideration.
He set out the grounds for the revised plan.
We set out the grounds for requesting more time.
The committee set out the grounds for its decision.
The document sets out the grounds for reducing the estimate.
Supporting a claim
8. Support
Support means provide help or evidence for something. In arguments, it can replace justify when facts strengthen a claim. Use support a conclusion with evidence. It is weaker than prove, since supporting material may make a claim more plausible without settling every question or ruling out an alternative explanation.
The records support her account of the booking.
Two examples support the proposed distinction.
Her notes support the recommendation for a second session.
The results support a cautious interpretation.
The signed attendance list supports the corrected total.
9. Substantiate
Substantiate means provide evidence that gives a claim a factual basis. It is formal and fits research or careful reporting. Use substantiate a claim with records or findings. It is more specific than explain, because the task is to supply support, not merely describe why someone believes the claim.
The photographs substantiate the reported damage.
We need records to substantiate the attendance figure.
Her correspondence substantiates the account of the change.
The writer could not substantiate the larger claim.
10. Validate
Validate means establish or confirm that something is valid for a particular purpose. It fits checks of reasoning, methods, or findings, but is not interchangeable with excuse. Use validate an approach or result. State what was checked, since a supportive opinion alone does not establish that a method works.
Confirm validity for a purpose.
The comparison helped validate the calculation.
A second review validated the corrected totals.
The exercise tested rather than assumed the method's validity.
The records validate the date printed on the form.
11. Corroborate
Corroborate means support an account with additional, independent information. It is useful when more than one source points towards the same event or detail. Use corroborate someone’s account or corroborate a finding. It adds confirmation, but does not automatically make every part of the wider account true.
The time stamp corroborates her account of arrival.
A second witness corroborated the sequence.
The receipt corroborates the date in his notes.
The photograph corroborates one detail of the story.
12. Back up
Back up means provide support or evidence for a statement. It is conversational and works well in feedback or a practical writing request. Use back up a claim with something. It can also mean make a spare copy, so identify the evidence when the context might involve documents or computer files.
Please back up the estimate with figures.
Her notes back up the proposed order.
The diagram backs up the spoken explanation.
He backed up his recommendation with two examples.
13. Demonstrate
Demonstrate means show through evidence or action. It fits justify when the task is to establish how something works or why a claim has support. Use demonstrate that or demonstrate how. Its stronger tone needs evidence; a single illustration may explain an idea without demonstrating that it applies generally.
The calculation demonstrates why the totals differ.
The rehearsal demonstrated the need for more space.
Her example demonstrates how the rule applies.
The records demonstrate that the file arrived later.
14. Establish
Establish means determine a fact or give it a sufficiently firm basis. It is stronger than suggest and suits findings supported by records or reasoning. Use establish that when stating a conclusion. It does not mean make an unsupported assertion sound definite; the basis must carry the strength of the wording.
Determine a fact firmly.
The receipts establish when payment was made.
We established which draft had been approved.
The record establishes that permission was requested.
Her analysis establishes a narrow point about timing.
15. Provide evidence
Provide evidence means supply information that bears on a claim. It is a direct phrase for reports, presentations, and questions about justification. Use provide evidence for something or evidence that something happened. Evidence can be relevant without being conclusive, so describe its limits if the distinction affects the argument.
Please provide evidence for the higher estimate.
The log provides evidence of repeated access.
She provided evidence that the message was sent.
The interview provides evidence about the original plan.
Defending and judging a decision
16. Defend
Defend means argue in support of a position facing criticism. It is a close alternative to justify in debates or difficult discussions. Use defend a decision to someone. It emphasises responding to challenge rather than simply giving background, and it does not necessarily imply that the defence succeeds or the decision was correct.
He defended the revised programme to the committee.
She defended her choice of opening example.
The speaker defended the proposal without dismissing questions.
We defended the smaller group size with practical reasons.
17. Vindicate
Vindicate means show that a criticised person, belief, or decision was right or justified. It usually follows evidence or an outcome, rather than describe an initial argument. Use vindicate a judgement. It is stronger than defend and should not be used just because someone has repeated their position firmly.
The recovered message vindicated her account.
The final result vindicated the cautious estimate.
The records vindicated his decision to wait.
The later review did not vindicate every assumption.
18. Warrant
Warrant means provide sufficient reason for an action or conclusion. The evidence or circumstances usually form the subject: the findings warrant a review. It is formal and useful when judging proportionality. It differs grammatically from justify a decision yourself, so rewrite the sentence instead of copying the original structure mechanically.
Provide sufficient reason.
The repeated errors warrant another check.
The missing consent warrants delaying the recording.
These findings warrant a more cautious claim.
The small discrepancy does not warrant cancelling the session.
19. Merit
Merit means deserve consideration, attention, or a response. It overlaps with warrant when circumstances justify taking a step, but often sounds less forceful. Use a question merits discussion. It does not prove that a proposed response is the only right one; it establishes that the matter deserves to be considered.
The suggestion merits a short discussion.
The discrepancy merits further attention.
Her proposal merits a place on the agenda.
The concern merits an answer before the vote.
20. Legitimise
Legitimise means give something legitimacy or make it accepted as valid. It is formal and can describe approval, rules, or recognised authority. It is a contextual alternative to justify, not a guarantee of moral correctness. Use legitimise a practice or decision, and specify the source of legitimacy if that matters.
The vote legitimised the new committee's role.
The rule should not legitimise unfair treatment.
Their agreement legitimised the shared arrangement.
The fictional council tries to legitimise its decision.
21. Uphold
Uphold means maintain or support a decision, standard, or principle. It is useful when a justification sustains something already established. Use uphold a rule or uphold a decision. It names continued support rather than the initial explanation, so it may change the sentence’s timing and the role of the person involved.
The committee upheld the original decision.
The volunteers upheld the agreed speaking rules.
Her response upheld the principle of equal access.
The review upheld the requirement for permission.
22. Defend the choice
Defend the choice is an explicit phrase for answering criticism of a particular selection. It suits discussions where several options were possible. Use defend the choice of something. It keeps the decision visible, but still needs reasons; it should not become a substitute for considering a reasonable objection.
Explain a challenged selection.
She defended the choice of a shorter programme.
We defended the choice of the outdoor venue.
He defended the choice after hearing the objections.
The team defended the choice with a clear comparison.
Excusing and making something acceptable
23. Excuse
Excuse means treat a fault as understandable or provide a reason that lessens blame. It can overlap with justify behaviour, but does not always claim the behaviour was right. Use excuse an error or excuse someone for something. In sensitive feedback, explain the circumstances without automatically removing the responsibility to repair the problem.
The delay does not excuse the missing notice.
She excused the interruption as an honest misunderstanding.
He tried to excuse the omission with a brief explanation.
The tutor excused the late arrival after hearing what happened.
24. Rationalise
Rationalise means construct a reasoned explanation, sometimes to make a questionable action seem acceptable. In this sense it can imply self-serving reasoning after the event. Use rationalise a choice or rationalise doing something. It is not automatically a compliment; give reasons is more neutral when you do not mean to question the reasoning.
He rationalised skipping the rehearsal as saving time.
The character rationalises her decision to hide the letter.
She questioned the way the team rationalised the delay.
We should not rationalise errors before checking their cause.
25. Explain away
Explain away means offer an explanation that reduces the apparent importance of an awkward fact. It is often critical and suggests dismissal rather than fair assessment. Use explain away a discrepancy. It can replace justify only when that dismissive effect is intended; explain or account for is better for a neutral investigation.
He tried to explain away the missing approval.
The writer explained away the contradictory detail.
She refused to explain away the repeated interruptions.
The small error should not be explained away without a check.
26. Make allowance for
Make allowance for means take a circumstance into account when judging an action or result. It can soften a judgement without declaring the outcome correct. Use make allowance for limited time or experience. It is useful in practical feedback where fairness requires context, while the need to improve remains visible.
Judge with relevant circumstances.
We made allowance for the unfamiliar equipment.
The tutor made allowance for the short preparation period.
Please make allowance for the group's first attempt.
She made allowance for the noise during the recording.
27. Show the need for
Show the need for means demonstrate why an action or resource is required. It is a contextual phrase for justify a request or cost. Use it with concrete circumstances. It focuses on necessity rather than general approval, so a useful preference should not be presented as a need without explaining the difference.
The queue shows the need for another registration desk.
The rehearsal showed the need for a spare cable.
Her notes show the need for clearer labels.
The booking pattern shows the need for a second room.
28. Align text evenly
Align text evenly is a plain description of justify in page formatting, where text is arranged to meet both margins. It is a separate sense from defending a decision. The phrase is explanatory rather than a universal software command. If you are giving interface instructions, preserve the program’s actual Justify label so users can find it.
The instruction asks students to align text evenly across the column.
We aligned the paragraph evenly between the margins.
She explained why evenly aligned text changed the spacing.
The example contrasts evenly aligned text with a ragged right edge.
29. Make defensible
Make defensible means provide a basis on which a decision or claim can reasonably be defended. It is useful when support improves an initially uncertain position. Use make a choice defensible through reasons or evidence. It is more cautious than prove right because a defensible choice may still have drawbacks or reasonable alternatives.
Give a basis for reasonable defence.
The comparison makes the recommendation defensible.
Clear criteria made the selection more defensible.
The evidence does not make every conclusion defensible.
Her explanation made the timing decision defensible.
What is a formal synonym for justify?
Substantiate fits supplying evidence for a claim; warrant fits circumstances that provide sufficient reason for an action; defend fits responding to criticism. These verbs describe different jobs. Choose the one that matches what the subject of your sentence actually does.
Is explaining the same as justifying?
No. Explaining makes the reasoning or circumstances understandable. Justifying adds a claim that the action, belief, or conclusion has an acceptable basis. You can explain why a mistake happened while still agreeing that it should be corrected.
What does justify mean in document formatting?
Justify means arrange text to align with both margins, often by adjusting spaces. This is separate from giving reasons. Use the software command name in instructions, and explain the resulting alignment if the reader is unfamiliar with it.
Choosing the right wording
When a decision is questioned, name the decision, give the relevant reason, and identify any evidence supporting it. Avoid using vindicate or establish merely to sound certain. If your purpose is to acknowledge a mistake, explain the cause and the remedy before deciding whether any part of the action was justified.
