1. To smoke; to throw off vapor, as in combustion: "Where the golden altar fumed."
2. To say something in an angry way: "The workers fumed that the company made changes without consulting or even letting them know what was about to happen."
3. To produce and to pass off smoke and fumes in vapors: "The volcano was fuming thick, black smoke."
4. To be in a rage; to be hot with anger: "He's fuming at not being invited to the party last night."
5. To disperse or to drive away in vapors. "The heat will fume away most of the scent."

1. Giving forth a visible vapor, a property of concentrated nitric, sulfuric, and hydrochloric acids, and certain other substances; such as, smoke, haze; vapors, unpleasant odors, and stenches: "The fuming cigar of a customer made eating disagreeable for others who were in the restaurant."
2. A reference to anger, rage, flying off the handle, exploding, or flaring up: "When Shirley hung up the phone, her fuming behavior was a result of her anger with her boyfriend."