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Word of the Day Tuesday, June 9, 2026

controller

/kənˈtrolər/ noun · British & US
Valid in UKValid in US
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What does controller mean?

noun

A person or thing that controls or regulates something, or a device or system that controls a machine or process.

Example

"The pilot was the controller of the aircraft during the emergency landing."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for controller

Antonyms of controller

Rhymes with controller

Etymologically related