oak
oak — noun
1. a tall, long-living tree found across Europe, North America, and other cooler re
a tall, long-living tree found across Europe, North America, and other cooler regions, which grows small seeds called acorns; also the strong, heavy wood from this tree, often used to build floors, doors, and furniture.
A huge oak stood in the middle of Grandma Iris's back garden.
countable: 'a/an + oak' refers to the tree
Squirrels were busy gathering acorns under the old oaks in the park.
plural 'oaks' for several trees
The kitchen table at the farmhouse was made of solid oak.
Mr. Pham polished the oak floor until it shone in the sunlight.
Lightning struck the tallest oak on the hill during last night's storm.
文法句型
an oak (tree)
made of oak
用法筆記
Countable when you mean the tree (an oak, two oaks); uncountable when you mean the wood (a chair made of oak, NOT 'made of an oak'). 'Oak tree' and plain 'oak' both work for the tree; English speakers often add 'tree' to avoid confusion with the wood.