1.between black and white in color. If something is similar to this color, you can say that it is a grayish color
2.if someone goes or turns gray, their hair starts to become white
3.if someone’s face is gray, they look pale because they are sick or shocked
4.used for describing the weather or the light when it is not very bright because there is a lot of cloud
6.not clearly one thing or another or clearly right or wrong, and therefore not easy to deal with
7.used for describing issues that relate to or affect old people