(photography) Said while being photographed, to give the impression of smiling.

(slang) Wealth, fame, excellence, importance. / (slang, dated, British India) The correct thing, of excellent quality; the ticket.

(slang) To stop; to refrain from. / (slang) To anger or irritate someone, usually in combination with "off".

(Internet slang, gaming, transitive, intransitive) To use a controversial or unsporting tactic to gain an advantage (especially in a game.)

(chess) Word called out by the victor when making a move that wins the game. / (by extension) Said when one has placed a person in a losing situation with no escape.

The conclusive victory in a game of chess that occurs when an opponent's king is threatened with unavoidable capture. / (figuratively, by extension) Any losing situation with no escape; utter defeat.

(transitive, chess) To put the king of an opponent into checkmate. / (transitive, by extension) To place in a losing situation that has no escape.

Abbreviation of chemistry.

Abbreviation of chemical.

Of or relating to cheese. / Resembling or containing cheese. / (informal) Overdramatic, excessively emotional or clichéd, trite, contrived.