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O'clock

/əˈklɒk/

Indicating the exact hour based on a 12-hour clock system.

Synonyms:

This word has no antonyms

'Just nine o'clock.

I left him at two o'clock in the morning.

It was nine o'clock.

Derived from Middle English phrases like of the clock or of clock, used from the 14th century, to signify the precise time, based on the clock.

13 mentions per 1 million words

Moderate

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