four o'clock
noun1
The start of the fifth hour of the day; 4:00 a.m. (04:00).
In both the 12-hour clock and the 24-hour clock
- The breakfast buffet opens at four o'clock (= "The breakfast buffet opens at 4:00 a.m.").
2
The start of the seventeenth hour of the day; 4:00 p.m. (16:00).
Only in the 12-hour clock
- The next train comes at four o'clock (= "The next train comes at 16:00").
3
Informal A position to the right and slightly behind (horizontal clock orientation) (from the location of the 4 mark on a clock face)
- We've got a bogey at four o'clock.
4
Any of several plants, of the genus Mirabilis, whose funnel-shaped flowers open in late afternoon.
5
The friarbirds (Philemon spp.); so called from its cry, which resembles these words.
- Derived terms
- garden four o'clock, Colorado four o'clock