An act of betrayal or treachery

(idiomatic) To betray (somebody).

(nautical) The tendency of a ship or other water-going vessel to remain upright due to its centre of gravity being below its centre of buoyancy, ie. basically having most of its weight down low.

present participle of stable

A building, shed, or room for horses and cattle; a stable.

(idiomatic) To attempt to prevent a problem that has already occurred.

(poker) An amount of money that is large relative to the stakes being played / (poker) A player who has a large amount of money relative to the stakes being played

(poker) Having a short stack.

(poker) Having a deep stack

(poker) A relatively small quantity of chips relative to the stakes. / (poker tournament) A quantity of chips which is far less than the average in the tournament.