MEANING: noun: The state of lying in the interval separating two conditions, qualities, extremes, etc.

ETYMOLOGY: From Old English betweonum (between), from be- (by) + tweon (two each). Earliest documented use: 1760.

BETEENITY - what you be after you be 12 (compare BETWENITY: after you be 19)

BESTWEENITY - when there isn't a better weenit anywhere

BET WE ENTITY - wager with a visiting extraterrestrial