timbering - n.
1 wood prepared for building, carpentry, etc.
2 a piece of wood or beam, esp. as the rib of a vessel.
3 large standing trees suitable for timber; woods or forest.
4 (esp. as int.) a warning cry that a tree is about to fall.

timber hitch a knot used in attaching a rope to a log or spar. timber wolf a type of large N. American grey wolf.

timbering n. [OE, = building, f. Gmc]