ALL meanings of o'clock
o'clock
O o - adverb o'clock on the hour 1
- adverb o'clock of, by, or according to the clock (used in specifying the hour of the day): It is now 4 o'clock. 1
- adverb 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. 1
- adverb o'clock used after a number from one to twelve to indicate the hour of the day or night 0
- adverb o'clock used after a number to indicate direction or position relative to the observer, twelve o'clock being directly ahead or overhead and other positions being obtained by comparisons with a clock face 0
- adverb o'clock of or according to the clock 0
- adverb o'clock as if on a clock dial, with the number 12 straight ahead or directly overhead 0
- adverb o'clock You use o'clock after numbers from one to twelve to say what time it is. For example, if you say that it is 9 o'clock, you mean that it is nine hours after midnight or nine hours after midday. 0