Get a 20% discount by buying an entire semester's worth of word lists (x 20), each one with a similar denotation, to give students a round of practicing the life-long skill of identifying the nuance of connotation from context clues and patterns between etymologically related words, rather than forcing vocabulary building through rote memorization that lasts only until the next test. Skills take time to build—use a new word list each week of the semester.