Definition:
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.
Examples:
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.
Tips:
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).