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

Of a sound, having a high pitch. / (dated) Haughty. / (of a steam locomotive boiler) Placed higher than was usual.

(obsolete) asphalt, bitumen, pitch

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

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

(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, 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

(transitive, baseball) To intentionally throw pitches which are slightly out of the strike zone, hoping that the batter will swing wildly at a pitch, but assuming that you will walk him

(music, uncountable) The ability to identify a note by name on hearing it, or to re-create a specified note from memory, without the benefit of an externally provided reference pitch.

Very dark; without light.