the noun form of the word tree is used to refer to a large plant typically with a single trunk that grows to a considerable height and branches out. It has many varieties, and forms a part of many ecosystems. Trees are mainly identified by their leaves, bark, size, shape, and type of flower or fruit.
Joseph picked apples from the apple tree in the garden.
The leaves of the palm tree swayed in the wind.
A club of amateur tree enthusiasts embarked on a weekend-long field trip to observe different types of trees.
when used as a noun, the word tree can also take the form of a plural noun (trees) and be used in a possessive form (tree’s leaves).