bool.
A Boolean variable (one whose value is either true or false).
Meaning & usage
A Boolean variable (one whose value is either true or false).
Where this word comes from
From a keyword in C++ and derived programming languages, short for Boolean.
To relax or hang out (especially with someone).
I'm going to go bool with the boys.
Where this word comes from
From b- + (c)ool, likely originally (or in imitation of) Blood slang.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.