1. (n.) A thick, black, lustrous, and sticky substance obtained by boiling down tar. It is used in calking the seams of ships; also in coating rope, canvas, wood, ironwork, etc., to preserve them.

2. (n.) See Pitchstone.

3. (n.) To cover over or smear with pitch.

4. (n.) Fig.: To darken; to blacken; to obscure.

5. (v. t.) To throw, generally with a definite aim or purpose; to cast; to hurl; to toss; as, to pitch quoits; to pitch hay; to pitch a ball.

6. (v. t.) To thrust or plant in the ground, as stakes or poles; hence, to fix firmly, as by means of poles; to establish; to arrange; as, to pitch a tent; to pitch a camp.

7. (v. t.) To set, face, or pave with rubble or undressed stones, as an embankment or a roadway.

8. (v. t.) To fix or set the tone of; as, to pitch a tune.

9. (v. t.) To set or fix, as a price or value.

10. (v. i.) To fix or place a tent or temporary habitation; to encamp.

11. (v. i.) To light; to settle; to come to rest from flight.

12. (v. i.) To fix one's choice; -- with on or upon.

13. (v. i.) To plunge or fall; esp., to fall forward; to decline or slope; as, to pitch from a precipice; the vessel pitches in a heavy sea; the field pitches toward the east.

14. (n.) A throw; a toss; a cast, as of something from the hand; as, a good pitch in quoits.

15. (n.) That point of the ground on which the ball pitches or lights when bowled.

16. (n.) A point or peak; the extreme point or degree of elevation or depression; hence, a limit or bound.

17. (n.) Height; stature.

18. (n.) A descent; a fall; a thrusting down.

19. (n.) The point where a declivity begins; hence, the declivity itself; a descending slope; the degree or rate of descent or slope; slant; as, a steep pitch in the road; the pitch of a roof.

20. (n.) The relative acuteness or gravity of a tone, determined by the number of vibrations which produce it; the place of any tone upon a scale of high and low.

21. (n.) The limit of ground set to a miner who receives a share of the ore taken out.

22. (n.) The distance from center to center of any two adjacent teeth of gearing, measured on the pitch line; -- called also circular pitch.

23. (n.) The length, measured along the axis, of a complete turn of the thread of a screw, or of the helical lines of the blades of a screw propeller.

24. (n.) The distance between the centers of holes, as of rivet holes in boiler plates.

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