Standard Lemma guide

bool

noun · verb · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • rhymes with -uːl

1

noun

Meaning 1

A Boolean variable (one whose value is either true or false).

Definition source: English Wiktionary via Wiktextract

Topics: computing, engineering, mathematics, natural-sciences, physical-sciences, programming, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To relax or hang out (especially with someone).

Definition source: English Wiktionary via Wiktextract

Usage: slang

Examples

  • I'm going to go bool with the boys.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From a keyword in C++ and derived programming languages, short for Boolean.

From b- + (c)ool, likely originally (or in imitation of) Blood slang.