What is the meaning of the word "pitch"?

Definitions:

a vendor's position, especially on the sidewalk noun
- They were employed to see that the paper's news pitches were not trespassed upon by rival vendors.
abrupt up-and-down motion (as caused by a ship or other conveyance) noun
- the pitching and tossing was quite exciting
degree of deviation from a horizontal plane noun
- the roof had a steep pitch
erect and fasten verb
- pitch a tent
fall or plunge forward verb
- They pitched over the railing of the balcony.
set to a certain pitch verb
- They pitched their voice very low, to harmonize with the rest of the group.
the action or manner of throwing something noun
- Their pitch fell short and their hat landed on the floor.
throw or hurl from the mound to the batter, as in baseball verb
- The pitcher delivered the ball
to hit a golf ball in a high arc with a backspin verb
- I was stuck in a sand trap, so I pitched the ball onto the green.
to set the level or character of verb
- They pitched their speech to the teenagers in the audience.