ˈōk noun
( plural oaks or oak )
Usage: often attributive
Etymology: Middle English ook, ok, from Old English āc; akin to Old High German eih oak, Old Norse eik, Greek aigilōps havergrass, Turkey oak and perhaps to Latin aesculus, an oak
1.
a. : a tree or shrub of Quercus or the related genus Lithocarpus
b.
(1) : the tough hard durable wood of an oak tree ; especially : such wood (as of the white oak, red oak, bur oak, cork oak, English oak) having a distinct pattern produced by prominent medullary rays
(2) : furniture made of this wood
bought oak for the living room
c. : the leaves of an oak used as a decoration
a wreath of oak
hung with oak
2.
a. : any of various plants resembling oaks (as in foliage) — usually used with a qualifying adjective or other attributive word; see poison oak , silk oak
b. Australia : casuarina 2
3. : a moderate to strong brown that is yellower and slightly darker than Vassar tan and yellower and slightly lighter than Arabian brown — called also briar