Definition of "oak" in English

noun

1. (countable) A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus.

2. (uncountable) The wood of the oak.

3. A rich brown color, like that of oak wood.

4. Any tree of the genus Quercus, in family Fagaceae.

5. Any tree of other genera and species of trees resembling typical oaks of genus Quercus in some ways.

6. The outer (lockable) door of a set of rooms in a college or similar institution. (Often in the phrase sport one's oak.)

   • The vesper bell had rung its parting note; the domini were mostly caged in comfortable quarters, discussing the merits of old port; and the merry student had closed his oak, to consecrate the night to friendship, sack, and claret.

7. (wine) The flavor of oak.

adjective

1. Having a rich brown color, like that of oak wood.

2. Made of oak wood or timber.

   • an oak table, oak beam, etc.

verb

1. (wine, transitive) To expose to oak in order for the oak to impart its flavors.