Other forms: eatings
Eating is the act of consuming food. It would be nice to have lunch in the library instead of the cafeteria — but unfortunately, they don't allow any eating in there.
The process of taking food in through your mouth — biting, chewing, tasting, swallowing — is eating. Figuratively, eating can also mean "wasting or destroying," the way rust consumes metal or anxiety gradually destroys a person's mental health. As an adjective, eating means "used for consuming," as in a set of eating utensils, complete with a spoon, fork, and knife. The Germanic etan, "consume or devour," is the root of eating.