The crossword solution for the term APPROXIMATING WORD is 'ABOUT'. This word is used to indicate that something is not exact, but close to it. It is often used to describe an estimate or a guess. For example, if someone asked you how long it would take to get to the store, you might say 'ABOUT 10 minutes'. This indicates that the time could be slightly more or less than 10 minutes, but it is a close estimate.