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justify

/ˈdʒʌs.tɪ.faɪ/
IELTSAcademic
verb

To give a reason that shows something is right or acceptable. It can also mean to show that an action was necessary.

  • Can you justify this expense?
  • He tried to justify his decision.
  • Nothing can justify that behaviour.

Adinary Nuance

Justify is stronger than explain. You explain something when you make it clear; you justify it when you prove it is reasonable or right. It is also different from defend, which often suggests protecting someone or something from criticism. In academic and business English, justify is common when you need to support a choice with reasons.

In other languages

Vietnamese
biện minh
Spanish
justificar
Chinese
证明合理
Japanese
正当化する
Korean
정당화하다

Etymology

From Old French justifier, from Latin justificare, meaning “make right” or “show to be right.” It has been used in English since the 14th century.

Common phrases

justify a decisionjustify a costjustify an actionjustify oneself

Synonyms

Related words

Frequently asked questions

Is justify formal or informal?
It is fairly formal. People often use it in writing, meetings, and academic English.
What is the difference between justify and explain?
Explain means make something clear. Justify means show that something is right, needed, or acceptable.
Can I use justify in IELTS writing?
Yes. It is a useful academic word for giving reasons and supporting your opinion.
What does justify oneself mean?
It means to explain your actions and show they were right or reasonable.