(1):

(n.) The clearing of bones from fish or meat.

(2):

(n.) 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.

(3):

(n.) The manuring of land with bones.

(4):

(p. pr. & vb. n.) of Bone