timber / timbre are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
timber: (noun) a beam made of wood. (noun) a post made of wood.
timbre: (noun) (music) the distinctive property of a complex sound (a voice or noise or musical sound).
timber: t·IH·m·b·er
timbre: t·IH·m·b·er
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)