portion — a part of any whole, either separated from or integrated with it: I read a portion of the manuscript.
bite — If you bite something, you use your teeth to cut into it, for example in order to eat it or break it. If an animal or person bites you, they use their teeth to hurt or injure you.
gulp — to gasp or choke, as when taking large drafts of a liquid.
morsel — a bite, mouthful, or small portion of food, candy, etc.
piece — a separate or limited portion or quantity of something: a piece of land; a piece of chocolate.
taste — to try or test the flavor or quality of (something) by taking some into the mouth: to taste food.
