Dictionary:

• Noun

  • (countable) A tree of the genus Quercus.
  • (uncountable) The wood of the oak.
  • A rich brown colour, like that of oak wood.

• Adjective:

  • (colour) of a rich brown colour, like that of oak wood.
  • made of oak wood or timber (an oak table, oak beam, etc)
  • consisting of oak trees (an oak wood, oak forest, etc)

• Derived terms:

  • oak leaf
  • oak wreath