What is Eat ?
Eat is (verb) 1. to chew and swallow food I’m hungry is there anything to eat? We haven’t eaten anything since breakfast. The children ate all the sandwiches. Eat as much as you like for £5.95! You’ll get thin if you don’t eat. I had him eating out of my hand he did everything I told him to do he had to eat his words he had to take back what he had said 2. to have a meal He was still eating his breakfast when I arrived. We are eating at home tonight. Have you eaten yet? (NOTE: eating ate has eaten )
source: Easier English, Student Dictionary Upper Intermediate Level