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operate
/ˈɒpəreɪt/
to function or work
The machine operates smoothly after the maintenance.
The machine works correctly after being serviced.
general
To function or work, especially a machine or system.
This elevator operates on electricity.
This elevator runs using electricity.
The factory operates 24 hours a day.
The factory runs continuously without stopping.
Often used for mechanical or organizational systems.
Medicine
Medicine
To perform surgery or a medical procedure on a patient.
The surgeon will operate on the patient tomorrow.
The surgeon will perform surgery on the patient tomorrow.
Requires an object (e.g., 'operate on someone').
Business
Business
To carry out a business or activity.
The company operates in three countries.
The company conducts business activities in three countries.
Often used with 'in' or 'on' to specify the scope.
Collocations
operate onperform surgery on someoneoperate infunction within a specific area or marketoperate underfunction according to a set of rules or conditions
Antonyms
Related Phrases
Pro Tip
Distinguish 'operate' from 'function'
'Operate' often implies active control or management (e.g., 'The pilot operates the plane'), while 'function' describes passive performance (e.g., 'The phone functions well').
Gold Rule
Transitive vs. Intransitive Use
In medical contexts, 'operate' is always transitive (e.g., 'The doctor will operate on the patient'). In technical contexts, it can be intransitive (e.g., 'The system operates efficiently').
Word Origin
From Latin *operari* 'to work, labor,' from *opus* 'work.' Entered English in the 16th century via French *opérer*.
Usage Notes
The verb can be transitive or intransitive. In medicine, it always takes an object (e.g., 'operate on the patient'). In technical contexts, it often describes machinery or systems.
Word Breakdown
oper
work
root-ate
verb-forming suffix
suffixEnglish Dictionary