content

In a sentence

• Je suis très content de te voir.

  I am very happy to see you.

  Here, 'content' is an adjective used to express happiness or satisfaction.

• Est-ce que tu es content de ton travail ?

  Are you satisfied with your work?

  In this sentence, 'content' conveys a sense of contentment or satisfaction related to work.

• Le contenu du livre est très intéressant.

  The content of the book is very interesting.

  Now, 'contenu', derived from 'content', is a noun referring to the substance or material inside something, like a book.