Wow! This site has a vast array of games and printables ready to go to work for you! Check out their Math Vocabulary games. I love them.
This is what they say about themselves:
Vocabulary.co.il is a leading vocabulary website worldwide with the best flash online word games. The vocabulary games include an online word search, an online crossword puzzle, and hangman online (our version is called HangMouse). Users choose the vocabulary list that the online word game will use in the word game. The vocabulary games are popular for use on smart boards for word games to build vocabulary skills in classrooms.