The crossword solution for the term ONE OF A PACK is LIE, which is a three-letter word. The term 'ONE of a PACK' is often used to describe someone who is similar to others in a group or who follows the same rules as everyone else. This phrase can also be used to describe someone who is not unique or special in any way. In this context, the term 'LIE' could refer to someone who is not telling the truth or who is pretending to be something they are not.