This site, OneLook: General dictionary sites, is very good for that type of question.
What's the difference between Accept and Except?
Example: I accept your offer of the book. / He excepted all Corvettes from his list of favorite cars
GabrielP, you will find this forum much more useful if you do the initial research yourself by checking dictionaries and grammar textbooks. If there is something about the definition or usage of a word that you do not understand after doing that, then please ask us to help, and explain what it is that you do not understand.