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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

Police had accepted his alibi and, on Christmas Eve, told McCullagh he was no longer viewed as a suspect.

From BBC • Mar. 23, 2026

Most surprising was the dialogue between Lee and the advanced OpenAI chatbot ChatGPT about how to create an alibi for Perpétuo’s injuries.

From Los Angeles Times • Mar. 10, 2026

“I’ll bet he went to his pals, the ones he planned all of this with. Sure; why wouldn’t they alibi for ’im?”

From "Native Son" by Richard Wright

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