1 any tree or shrub of the genus Quercus usu. having lobed leaves and bearing acorns.
2 the durable wood of this tree, used esp. for furniture and in building.
3 (attrib.) made of oak (oak table).
4 a heavy outer door of a set of university college rooms.
5 (the Oaks) (treated as sing.) an annual race at Epsom for three-year-old fillies (from the name of a nearby estate).
Phrases and idioms:
oak-apple (or -gall) an apple-like gall containing larvae of certain wasps, found on oak trees.
Derivatives:
oaken adj.
Etymology: OE ac f. Gmc
Useful english dictionary. 2012.