Hit sign is a phrase that is often used to describe a situation in which someone has been hurt or injured. The term can also be used to describe a situation in which someone has been taken advantage of or treated unfairly. The two crossword solutions for the term hit sign are OUCH (4 letters) and SRO (3 letters). OUCH is an exclamation of pain or surprise, while SRO stands for standing room only, which is a phrase used to describe a situation in which there are more people than available seats.