Ante

betting

A forced bet all players must post before each hand.

Antes seed the pot, increasing pre-flop competition. Tournaments use them in later levels; some cash games (notably big-bet stud and some online formats) use them too.

See also

All-In
Betting all your remaining chips.
Barrel
A continuation bet on a later street (double = flop+turn, triple = + river).
Blind
A forced bet posted before the cards are dealt.
C-Bet
A bet on the flop by the preflop raiser.