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Explanation: pitch verb [ME pichen] (13c) - verb transitive
1: to erect and fix firmly in place <pitch a tent>
2a: to cause to be at a particular level or of a particular quality
2b: to cause to be set at a particular angle : SLOPE
pitch1 (pich) v., pitched, pitch•ing, n.— v.t.
1. to erect or set up (a tent, camp, or the like).
2. to put, set, or plant in a fixed or definite place or position.
3. to throw, fling, hurl, or toss.
4. to set at a certain point, degree, level, etc.: He pitched his hopes too high. 5. to set or build with a downward slope: a pitched roof. 8. to pave or revet with small stones. — v.i.9. to plunge or fall forward or headlong.
6. to slope downward; dip.
7. relative point, position, or degree: a high pitch of excitement.
8. the degree of inclination or slope; angle.
9. a sloping part or place: the pitch of a hill.
10. a quantity of something pitched or placed somewhere.
11. a. the distance between the corresponding surfaces of two adjacent gear teeth, measured between perpendiculars to the root surfaces. b. the distance between any two adjacent things in a series, as screw threads or rivets.