Scholastic, like National Geographic, is one of those sites on which I find something new every time I visit it. My latest discovery on Scholastic is Word Girl Games. Word Girl Games offers four vocabulary activities for students. Of the four activities one is a game called Synonym Toast. In Synonym Toast students have to place as many pieces of synonym toast as they can in three minutes. The “toaster” displays a word and students have to place the piece of toast displaying the matching synonym in the toaster.

Here are some related resources that may be of interest to you:
Math and Language Arts Games on Arcademic
Fun 4 The Brain – Great Educational Games
200+ Free Games for Your Class Blog or Website