six

1. (card games) A playing card featuring six pips.

2. (military slang, by ellipsis of six o'clock) Rear, behind (rear side of something).Examples: "cover my six"; "Just as having an enemy on your “six” is the hardest situation to escape, being on an enemy at six o'clock is the surest kill. Fighter pilots are always practicing maneuvers to get out from having another aircraft on their six."slang

3. (cricket) An event whereby a batsman hits a ball which does not bounce before passing over a boundary in the air, resulting in an award of 6 runs for the batting team.Examples: "His century featured 12 sixes."; "England required 15 from the last over of the regular match. Ben Stokes hit a six and benefited when a throw from the deep hit him and went for four overthrows."

4. (American football) A touchdown.

5. (North Wales) A bathroom or toilet.North-Wales

6. (obsolete) Small beer sold at six shillings per barrel.obsolete