Is the word "cousin" used for females too?
What do you call the daughter of the uncle? Is it "cousin"?

Question

Answer

Cousin is for both boys and girls.

Answer

ya cousin can be used for both males & females.

Answer

Yes it is.  A first cousin is any daughter or son of your aunt or uncle.  We also have second, third, etc. cousins who are, collectively with first cousins called cousins.

A second cousin would be, for example, your first cousin's child.