timber vs stringer

timber and stringer both are nouns.

Word	Noun	Adjective	Verb	Adverb
timber	Yes	No	No	No
stringer	Yes	No	No	No

As nouns, stringer is a hyponym of timber; that is, stringer is a word with a more specific, narrower meaning than timber:

Other hyponyms of timber include coulisse, sternpost, two-by-four.

timber (noun)	stringer (noun)
a beam made of wood	a long horizontal timber to connect uprights
a post made of wood	brace consisting of a longitudinal member to strengthen a fuselage or hull
(music) the distinctive property of a complex sound (a voice or noise or musical sound)	a worker who strings
land that is covered with trees and shrubs	a member of a squad on a team
the wood of trees cut and prepared for use as building material