(transitive, intransitive, idiomatic) To help out; lend assistance; contribute; to do one's part to help. / To begin briskly.

A throw; a toss; a cast, as of something from the hand. / (baseball) The act of pitching a baseball.

A sticky, gummy substance secreted by trees; sap. / A dark, extremely viscous material remaining in still after distilling crude oil and tar. / (geology) Pitchstone.

(transitive) To throw. / (transitive or intransitive, baseball) To throw (the ball) toward a batter at home plate. / (intransitive, baseball) To play baseball in the position of pitcher.

(intransitive) To produce a note of a given pitch. / (transitive) To fix or set the tone of.

To cover or smear with pitch. / To darken; to blacken; to obscure.

(music, phonetics) The perceived frequency of a sound or note.

(slang) To attack; to assault; to abuse.

To throw (something) onto (something). / To give a pitch (a presentation to convince someone on an idea) to (someone).

The act of throwing or casting. / The rough paving of a street to a grade with blocks of stone. / (engineering) A facing of stone laid upon a bank to prevent wear by tides or currents.