CEFR C1

boolean

adjective

Meaning

Relating to a system of logic in which propositions are classified simply as true or false, or to the values representing these states.

The 'is_active' flag is a boolean value that determines if a user account is currently enabled.
The search query returned a boolean result: true if any matches were found, false otherwise.

Synonyms: logical, binary, true/false

adjective

Pronunciation: /ˈbuːliən/

Relating to a system of logic in which propositions are classified simply as true or false, or to the values representing these states.

The 'is_active' flag is a boolean value that determines if a user account is currently enabled.
The search query returned a boolean result: true if any matches were found, false otherwise.
In many programming languages, boolean operators like AND, OR, and NOT are used to combine or modify logical conditions.

boolean logic (collocation): The system of logic dealing with true and false values. — "Computer science heavily relies on boolean logic to process information."
boolean value (collocation): A value that is either true or false. — "The function returns a boolean value indicating success or failure."
boolean expression (collocation): A statement that evaluates to either true or false. — "The 'if' statement checks if a boolean expression is met before executing code."

Words with a similar meaning to boolean: