Gray is a color that is not black or white. It is often a mix of these two colors. People see gray in clouds and some clothes.
She wore a gray coat today.
The sky is gray and cloudy.
Gray hair means hair that is not its original color but has become white or silver, usually because a person is old. It is a natural sign of aging.
His gray hair shows he is old.
My grandmother has gray hair now.
To gray means to change color to gray. People’s hair can gray when they get old. Sometimes, the sky or other things become gray too.
His hair grayed after many years.
The sky grayed before the storm.
In physics and medicine, a gray is a unit that measures how much radiation energy is absorbed by a material or person. It is used to check radiation safety and treatment.
The patient received five grays of radiation.
A gray measures radiation dose absorbed.
Gray can describe something that is not clear or has no clear answer. People say 'gray area' when something is unknown or hard to decide.
The rules are gray and confusing.
This topic is a gray area to me.
