Definiciones
1.NounThe start of the fifth hour of the day; 4:00 a.m. (04:00)."The breakfast buffet opens at four o'clock (= "The breakfast buffet opens at 4:00 a.m.")."
2.NounThe start of the seventeenth hour of the day; 4:00 p.m. (16:00)."The next train comes at four o'clock (= "The next train comes at 16:00")."
3.NounA position to the right and slightly behind (horizontal clock orientation)"We've got a bogey at four o'clock."
4.NounAny of several plants, of the genus Mirabilis, whose funnel-shaped flowers open in late afternoon.
5.NounThe friarbirds (Philemon spp.); so called from its cry, which resembles these words.