(slang) To have an erection that shows through the trousers. / Used other than figuratively or idiomatically: to pitch a tent.

Absolutely dark or black; as dark as pitch.

(music) An equivalence class of all pitches that are octaves apart, and which would be labeled by an integer, not a traditional letter name.

(music) Any two or more pitches or pitch classes all of which occur simultaneously, or at the same time. It may be thought of as a more general term for any possible chord. Any chord progression or harmonic progression is then a simultaneity succession, though not all simultaneity successions are harmonic progressions and not all simultaneities are chords.

(dated) To court; to make romantic advances. / To flatter.

(baseball) The moment when the pitcher begins the motion of pitching the ball and, by the rules of the game, has committed himself to throwing the pitch.

(baseball) The number of throws that a pitcher has delivered in a game.

(baseball) A pitch which was intentionally thrown outside to the catcher who stands up with the pitch for the purpose of enabling the catcher to throw out a runner.

(baseball) A play where the pitcher throws a non-catchable pitch and a runner advances.

(baseball, intransitive) To intentionally throw the ball outside to the catcher who stands up with the pitch for the purpose of enabling the catcher to throw out a runner