Question

what is meant by canopy in a forest?

Answer 1

In forest ecology, canopy also refers to the upper layer or habitat zone, formed by mature tree crowns and including other biological organisms (epiphytes, lianas, arboreal animals, etc.). Sometimes the term canopy is used to refer to the extent of the outer layer of leaves of an individual tree or group of trees.

Answer 2

the huge cluster of high rise trees where the topmost greenery is called as canopy
trees are so densely packed that not even sunlight can enter