Controller
Controller noun - A mechanism for adjusting the operation of a device, machine, or system.
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Synonyms for Controller
Operation and controller are semantically related. In some cases you can use "Operation" instead a noun "Controller".
Operation
Operation noun - A specific task with which a person or group is charged.
Controller and operation are semantically related. Sometimes you can use "Controller" instead a noun "Operation".
Mutual synonyms
Both words in one sentence
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Dramatic Irony: Natsume is the controller of the operation-type shikigami Hokuto, this means that the Hokuto Harutora knew was actually Natsume, but Harutora is too dense to figure it out.
Source: Light Novel / Tokyo Ravens - Bentley remarks, "The whole operation is blown — if we don't have someone at the controls." It shows an empty chair with a PlayStation 2 controller.
Cite this Source
Operation and Controller. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/controller/operation
Controller & Operation. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/controller/operation>.
Operation or Controller. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/controller/operation.
Google Ngram Viewer shows how "controller" and "operation" have occurred on timeline