timber /ˈtimbə/ n. 1.［u］木材，原木: cut down/fell timber 伐木；process timber 加工木材；the timber industry 木材工业；a timber yard 木场 2.［c］大木料，栋木: The timbers are weak. 横梁不硬。A timber fell from the roof. 一根大梁从屋顶上掉了下来。