(In both the 12-hour clock and the 24-hour clock) The start of the seventh hour of the day; 6:00 a.m. (06:00).

(US, especially black slang, of a woman) Straight up and down, without curves, like the hands of a clock.

The cardinal number occurring after five hundred ninety-nine and before six hundred one, represented in Arabic numerals as 600.

(South Africa) The pintailed whydah, Vidua macroura.

present participle of deep-six

Alternative form of deep six

(dated) A revolver with a cylinder that holds six bullets.

plural of six-gun

plural of six-pack

A collection of six of something bundled together, especially six cans. / (bodybuilding) A highly developed set of abdominal muscles.