Meaning of o'clock
Pronunciation: (u-klok'), [key]
- of, by, or according to the clock (used in specifying the hour of the day): It is now 4 o'clock.
- according to a method for indicating relative position whereby a plane in space is considered to be numbered as a clock's face, with 12 o'clock considered as directly ahead in horizontal position or straight up in vertical position.
- o'clock (Thesaurus)