Difference between "ease" and "easy" [closed]

The biggest difference is that "ease" is a noun and a verb, and "easy" is an adjective.

Roughly speaking: the opposite of difficult is easy, and the opposite of difficulty is ease (but only in the uncountable sense - you can talk about the difficulty/ease of a task, and coming across "a difficulty", but not "*an ease").

To ease something into somewhere means to put it in slowly and gradually - the opposite of forcing it in. Examples:

The first question is very easy.

I answered the first question with ease.

The ease of communicating by email makes it very popular.

I eased my foot into the tight-fitting shoe.