The crossword solution for the term 'JUST ENOUGH TO WET THE LIPS' is SIP, which is a three-letter word. SIP is an acronym for 'Sipping, ' which is the act of taking small amounts of liquid into the mouth and swallowing it. This phrase is often used to describe taking a small amount of a beverage, such as a SIP of wine or a SIP of coffee. In this case, it is referring to taking just enough of a beverage to wet the lips.