This is the 2118th most frequent Japanese word.
屋根
"屋根" means "roof" in English.
屋根 is used to denote the roof of a building, pointing to a physical location upon which the bird is resting.
屋根の上に鳥が止まっています。
There is a bird resting on the roof.
屋根 is used to describe the color and appearance of the roof of a house, signifying its physical attribute.
その家の屋根は赤い色をしている。
The roof of that house is red.
屋根 is used to refer to the part of a building that sustained damage during the storm, highlighting its structural role.