Air condition is a term used to describe the process of cooling and dehumidifying air in an enclosed space. The crossword solutions for this term are SMOG (4 letters), COOL (4 letters), and CLIMATE (7 letters). SMOG stands for a mixture of smoke and fog, which is a type of air pollution. COOL is an adjective used to describe something that has a low temperature. CLIMATE is the average weather conditions of a certain area over a long period of time.