# operate

/ˈɑpɝˌeɪt/ (US) · /ˈɒpəɹˌeɪt/ (UK)

Source: https://englishreference.com/word/operate
Updated: 2026-06-19

## Senses

### 1. to function

verb · CEFR B1

to work or run in a specific way.

For teachers: to function or work according to a particular principle or mechanism.

- The new heating system operates much more quietly than the old one.
- The underground network operates on a strictly automated schedule, ensuring that trains arrive at three-minute intervals during peak hours.

Usage: Often used with adverbs like 'efficiently', 'smoothly', or 'automatically'.

### 2. to control a machine

verb · CEFR B1

to use or control a piece of equipment or a machine.

For teachers: to control the functioning of a machine, process, or system. Transitive when referring to the machine being controlled.

- You must be trained before you are allowed to operate this heavy machinery.
- The technician demonstrated how to operate the high-precision laser without damaging the delicate internal components.

Usage: Takes a direct object representing the machine or system.

### 3. medical surgery

verb · CEFR B2

to cut into a person's body to fix a medical problem.

For teachers: to perform a surgical procedure on a patient. Intransitive when used with 'on'; occasionally transitive in technical medical contexts.

- The surgeons had to operate on his leg immediately after the accident.
- The surgical team decided to operate on the patient's heart only after stabilizing his blood pressure and reviewing the latest scans.

Usage: Typically takes the preposition 'on' followed by the patient or the body part.

### 4. to run a business

verb · CEFR B2

to manage or conduct a business or organization.

For teachers: to conduct or manage the affairs of a business, organization, or project.

- The company operates several branches across the country.
- The non-profit organization operates under a strict transparency policy to ensure all donations are tracked and reported accurately.

## Examples

- The surgeon will operate on his shoulder tomorrow.
- Because the internal bleeding would not stop, the medical team decided to operate immediately rather than wait for more test results.
- Although the spinal fracture was severe, the attending physician chose not to operate, opting instead for a conservative treatment plan involving a specialized brace and extensive physical therapy.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.