Keep watch vs Supervise

When to use each in English, with meaning, register, and examples.

Keep watch

Top 3,000 (common)

Supervise

Top 2,000 (common)C1verb
Most common: Supervise
 Keep watchSupervise
Pronunciation🇬🇧 //kiːp wɒtʃ//🇺🇸 //kiːp wɑtʃ//🇬🇧 /["/ˈsuːpəvaɪz/","/ˈsuːpəvaɪzɪz/","/ˈsuːpəvaɪzd/","/ˈsuːpəvaɪzɪŋ/"]/🇺🇸 /["/ˈsuːpərvaɪz/","/ˈsuːpərvaɪzɪz/","/ˈsuːpərvaɪzd/","/ˈsuːpərvaɪzɪŋ/"]/
MeaningTo stay alert or pay attention, especially for danger.To watch over and manage people or activities.
ExampleHe was asked to keep watch over the campsite at night.to supervise building work
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 2,000 (common)
CEFR level-C1
Part of speechverb
Collocationskeep watch over, keep a close watch, keep watch for, keep watch at night, keep vigilant watchcarefully, closely, directly, appoint somebody to, be responsible for supervising something
Antonyms-neglect, ignore
Common mistakesConfused with 'keep an eye on', which suggests a less formal level of vigilance., Using inappropriately in passive voice, as 'watch kept' sounds unnatural.Confused with 'supervisor' - remember 'supervise' is the action, while 'supervisor' is the person., Using 'supervise' in informal contexts where 'help' or 'watch' would be better., Omitting the object - 'supervise' should always have something that is being supervised.
Usage notesUsed when monitoring a situation or being vigilant. Appropriate in both formal and informal contexts when discussing safety or alertness.Used in professional or educational contexts. Avoid using it in casual conversations where simpler terms like 'watch' may be more appropriate.

See it in real clips

Keep watch
Supervise

Frequently asked questions: Keep watch vs Supervise

What's the difference between Keep watch and Supervise?

Keep watch: To stay alert or pay attention, especially for danger. Supervise: To watch over and manage people or activities.

Which is more common: Keep watch and Supervise?

Supervise is the most common in everyday English.

Can you show an example of each?

Keep watch: He was asked to keep watch over the campsite at night. Supervise: to supervise building work

Can I use Keep watch and Supervise interchangeably?

Not always. Keep watch and Supervise are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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