/ əʊk; NAmE oʊk/ noun
1.
[ C , U ] (also ˈoak tree ) a large tree that produces small nuts called acorns . Oaks are common in northern countries and can live to be hundreds of years old :
a gnarled old oak tree
forests of oak and pine
—see also poison oak
2.
[ U ] the hard wood of the oak tree :
oak beams
This table is made of solid oak.
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IDIOMS
- great / tall oaks from little acorns grow
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WORD ORIGIN
Old English āc , of Germanic origin; related to Dutch eik and German Eiche .