The crossword solution for the term HALF OF BI- is UNI, which is a three letter word. UNI is short for the word 'unilateral', which means 'done or acting by one person or group only'. This term is often used to describe a situation in which one party has more power than the other. In this context, HALF OF BI- refers to the fact that one side of a bi-lateral relationship has more power than the other.