Definition of pitch:
the property of sound that varies with variation in the frequency of vibration
(baseball) the act of throwing a baseball by a pitcher to a batter
a vendor's position (especially on the sidewalk); "he was employed to see that his paper's news pitches were not trespassed upon by rival vendors"
promotion by means of an argument and demonstration
degree of deviation from a horizontal plane; "the roof had a steep pitch"
any of various dark heavy viscid substances obtained as a residue
a high approach shot in golf
an all-fours game in which the first card led is a trump
abrupt up-and-down motion (as caused by a ship or other conveyance); "the pitching and tossing was quite exciting"
the action or manner of throwing something; "his pitch fell short and his hat landed on the floor"
throw or toss with a light motion; "flip me the beachball"; "toss me newspaper"
move abruptly; "The ship suddenly lurched to the left"
fall or plunge forward; "She pitched over the railing of the balcony"
set to a certain pitch; "He pitched his voice very low"
sell or offer for sale from place to place
be at an angle; "The terrain sloped down"
heel over; "The tower is tilting"; "The ceiling is slanting"
erect and fasten; "pitch a tent"
throw or hurl from the mound to the batter, as in baseball; "The pitcher delivered the ball"
hit (a golf ball) in a high arc with a backspin
lead (a card) and establish the trump suit
set the level or character of; "She pitched her speech to the teenagers in the audience"