o clock

Fetched 2026-10-28 (live).

Synonyms: oclock, o'clock

Antonyms: oclock, o'clock

Related words from Datamuse; suggestions, not definitions.

Adverb

1. NATO, ICAO, ITU & IMO radiotelephony code word used with numerals up to twelve to indicate direction

Adverb

1. In conjunction with a numeral, indicates the time within a twelve-hour period (midnight to noon or noon to midnight), specifically the time when the hour hand of a clock points precisely to the symbol or marking corresponding to the designated numeral, i.e., at the hour.
   • We are expected to be there at six o'clock in the morning!
   • It is two o'clock.
   • What o'clock is it?
2. Used to indicate that it is time to do a specific action, or time for a specific action to occur.
   • I'm feeling peckish; I think it must be nearly dinner o'clock.
   • We're here at Waffle House, and it's waffles o'clock!
   • Hooray! Beer o'clock!
3. In conjunction with a numeral, indicates the direction, relative to the speaker or a vehicle, especially an aircraft, corresponding to the direction the hour hand is pointing at the time corresponding to the numeral, with twelve representing directly ahead on a horizontal plane, or directly up on a vertical plane, and three being to the right on either.

Source: Wiktionary · CC BY-SA 3.0 (Wiktionary) · cached copy, not a rewrite.