The two crossword solutions for the term STOP!; SLOW DOWN! are 'WHOA' and 'SLOW'. WHOA is an interjection used to express surprise, disbelief, or caution. It is often used as an exclamation of surprise or warning, such as when someone is about to do something dangerous or foolish. SLOW is an adjective meaning moving or proceeding at a low speed. It can also be used as a verb, meaning to reduce the speed of something. Together, these two words form an imperative phrase used to tell someone to stop what they are doing and SLOW down.