Hang on a clothesline is a method of drying clothes that has been used for centuries. The process involves hanging wet clothes on a line outside or inside to allow them to DRY naturally in the AIR. The crossword solutions AIR (3 letters), DRY (3 letters) and AIRDRY (6 letters) are all related to this process. AIR refers to the AIR that the clothes are exposed to, DRY refers to the process of drying, and AIRDRY is a combination of the two words.