\Bon"ing\, n. [Senses 1 and 2 fr. 1st {Bone}, sense 3 fr.
3d {Bone}.]
1. The clearing of bones from fish or meat.

2. The manuring of land with bones.

3. A method of leveling a line or surface by sighting along
   the tops of two or more straight edges, or a range of
   properly spaced poles. See 3d {Bone}, v. t.