The term 'Tire Inflater' is a job description for someone who uses an AIR compressor to fill tires with AIR. An AIR compressor is a device that takes in AIR and compresses it, allowing it to be stored in a tank and used for various purposes. The crossword solutions for the term Tire Inflater are AIR, which is a three-letter word meaning the atmospheric mixture of gases surrounding the earth. This is the same AIR that is used to inflate tires.