Justify vs Tell me why

When to use each in English, with meaning, register, and examples.

Justify

FormalBeyond 10,000 (less common)B2verb

Tell me why

Top 2,000 (common)
Most formal: JustifyMost common: Tell me why
 JustifyTell me why
Pronunciation🇬🇧 /["/ˈdʒʌstɪfaɪ/","/ˈdʒʌstɪfaɪz/","/ˈdʒʌstɪfaɪd/","/ˈdʒʌstɪfaɪɪŋ/"]/🇺🇸 /["/ˈdʒʌstɪfaɪ/","/ˈdʒʌstɪfaɪz/","/ˈdʒʌstɪfaɪd/","/ˈdʒʌstɪfaɪɪŋ/"]/🇬🇧 //tɛl mi waɪ//🇺🇸 //tɛl mi waɪ//
MeaningTo give a good reason for something.Ask someone to explain something to you.
ExampleHe tried to justify his actions during the meeting.Can you tell me why the meeting was canceled?
RegisterFormalNeutral
How commonBeyond 10,000 (less common)Top 2,000 (common)
CEFR levelB2-
Part of speechverb
Collocationsreally, truly, easily, can, serve to, appear to, on the grounds of something, on the grounds that…, totell someone why, tell me why not, tell me why this happens
Antonymscondemn, disprove, invalidate-
Common mistakesUsed incorrectly as 'justification' instead of 'justify'., Confused with 'validate' in casual contexts., Incorrectly formed with 'justify to' instead of 'justify why'.Omitting 'me' and saying just 'Tell why'., Using inappropriately in formal contexts without context., Misplacing the phrase at the end of a sentence.
Usage notesUse 'justify' when explaining reasons or arguments, especially in formal writing or debate. Avoid in casual conversations.Use in conversations when seeking an explanation. Suitable in both formal and informal contexts.

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Tell me why

Frequently asked questions: Justify vs Tell me why

What's the difference between Justify and Tell me why?

Justify: To give a good reason for something. Tell me why: Ask someone to explain something to you.

Which is more formal: Justify and Tell me why?

Justify is the most formal of these.

Which is more common: Justify and Tell me why?

Tell me why is the most common in everyday English.

Can you show an example of each?

Justify: He tried to justify his actions during the meeting. Tell me why: Can you tell me why the meeting was canceled?

Can I use Justify and Tell me why interchangeably?

Not always. Justify and Tell me why are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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