(derogatory) A goody-goody; a person who is exceptionally good and perhaps self-satisfied.

Alternative spelling of goody two shoes

An engine that works on the two-stroke principle.

(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.

(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.

(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.

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