AFFIXES are words or parts of words that are added to the beginning or end of other words to create new words. ADDS, PINS, SETS, and TIESON are all examples of affixes. ADDS is a verb meaning to join or attach something to something else. PINS is a noun referring to a thin piece of metal with a sharp point at one end and a round head at the other, used especially for fastening pieces of cloth. SETS is a verb meaning to put something in a specified place or position. TIESON is a verb meaning to attach or connect something to something else.