Definitions of timber:

• noun:   a beam made of wood
• noun:   a post made of wood
• noun:   (music) the distinctive property of a complex sound (a voice or noise or musical sound)
• noun:   the wood of trees cut and prepared for use as building material
• noun:   land that is covered with trees and shrubs
• name:  A surname (very rare: popularity rank in the U.S.: #67139)