(idiomatic) Clumsiness, especially at dancing or in sports involving kicking a ball.

(idiomatic) Some things need the active cooperation of two parties; blame is to be laid on both parties in a conflict.

(idiomatic) No other possible action, choice or option. / (idiomatic) No other possible interpretation.

A respectful ritual in which normal activity ceases and people stand in silent meditation for two minutes; held regularly on Armistice Day, Remembrance Day, and on other occasions, to remember the dead.

(baseball) A pitch thrown with a grip in the "horseshoe" orientation of the ball, with the rotation at a slight angle resulting in less Magnus effect as compared to a four-seam fastball since only two of the ball's seams cross the flight path; the pitch is delivered with a similar velocity as a four-seam fastball, but has a degree of sink.

(American football) In the NFL, a timeout and warning given to the coaches with two minutes to go before the end of each half.

Any form of communication between two parties, both of whom can send and receive messages.

(idiomatic) Strong approval. / (dated) A hand gesture indicating strong approval.

(algebra) The identity x²-y²=(x+y)(x-y), that holds for all real numbers.

(slang) bent, not lawful. / (slang) bent, homosexual.