a defense against one-notrump openings: double = one-suiter; two spades = natural; two of another suit = that suit and some higher-ranking suit.

DONT is a conventional overcall against an opposing 1NT opening bid. DONT, an acronym for Disturb Opponents' NoTrump, was designed by Marty A. Bergen, and is therefore also referred to as 'Bergen over Notrump'.

referring to a tooth ("macrodonta" = "large-toothed")

do not