Think of a single word that goes with each to form a compound word (or word pair that functions as a compound word).
For example: volley, field, and bearing. The answer would be "ball," because the word ball can be added to each of the other words to form volleyball, ballfield, and ball bearing.
Your words are:
The first person to answer correctly gets the 10 extra credits! :o)
Answer by layh41407 at 8:37 PM on Jul. 12, 2010