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Definitions

alibi

[al-uh-bahy] / ˈæl əˌbaɪ /
NOUN
defense against charges of wrongdoing; evidence of absence
Synonyms
STRONGEST
excuse justification pretext
STRONG
account affirmation allegation answer assertion assurance avowal case cover declaration explanation plea profession proof reason reply retort stall statement vindication
WEAK
airtight case cop-out fish story song and dance
Antonyms
STRONG
denial question request

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The person in question had no alibi for the night of the murder and had failed two polygraph tests, according to police records.

From Slate • Apr. 6, 2026

Ford determined that Hatley was the only person who couldn’t provide an alibi for the night of the murder.

From Slate • Apr. 6, 2026

That alibi was outlined thoroughly in court during McCullagh's trial, with the jury shown a video of him asleep in front of the TV during the World Cup final.

From BBC • Mar. 23, 2026

The former partner McCullagh had accused is also arrested and interviewed – he too has an alibi and is released.

From BBC • Mar. 23, 2026

In the nature of things she could not have an alibi to fall back upon.

From "Murder on the Orient Express" by Agatha Christie

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.