Tree with hard wood (5)
(Other definitions for teak that I've seen before include "Quality timber" , "Hardwood tree" , "A SE Asian hardwood" , "Type of wood" , "Hardwood found naturally in the Far East" .)
(Other definitions for beech that I've seen before include "Copper or silver tree" , "Tree (with green or copper leaves)" , "Type of tree" , "Timber tree" , "Common forest tree" .)