A number of persons who eat together at the same table; especially, a group of officers or men in the army or navy who regularly take their meals in company, A quantity of food set on a table at one time; provision of food for a person or party for one meal; ; also, the food given to a beast at one time, A cluttered, untidy, usually dirty place or condition, intransitive verb_ To cause or make a mess, To take a meal in a military mess, transitive verb_ To supply with a mess, To take meals with a mess; to belong to a mess; to eat (with others)