Oak Definition

ōk

oaks

noun

oaks

Any of a genus (Quercus) of large hardwood trees and bushes of the beech family, bearing acorns.

Webster's New World

The hard durable wood of any of these trees or shrubs.

American Heritage

Any of various plants with oaklike leaves.

Webster's New World

The wood of an oak.

Webster's New World

A wreath of oak leaves.

Webster's New World

Synonyms:

adjective

Of oak; oaken.

Webster's New World

(colour) Of a rich brown colour, like that of oak wood.

Wiktionary

Made of oak wood or timber.

An oak table, oak beam, etc.

Wiktionary

Consisting of oak trees.

An oak wood, oak forest, etc.

Wiktionary

Initialism of of a kind.

In poker, 3 OAK beats two pair.

Wiktionary

Other Word Forms of Oak

Singular:

oak

Plural:

oaks

From Middle English ook, from Old English āc, from Proto-Germanic *aiks (compare Scots aik, West Frisian iik, Dutch eik, German Eiche, Danish eg), from Proto-Indo-European *eiḱ or *eiǵ- (compare Latin aesculus (“Durmast oak"), Lithuanian ąžuolas (“oak"), Albanian enjÃ« (“juniper, yew"), Ancient Greek αἰγίλωψ (aigilōps, “Turkey oak"))

From Wiktionary
Middle English ok from Old English āc

From American Heritage Dictionary of the English Language, 5th Edition