a part broken off; a separate or incomplete part

part, chip

a very small bit; any (usually short) word that is not a verb, subject or object but is a necessary part of a phrase, sentence or verb

atom, piece

a part or bit of a solid substance or thing

part

a part, especially a share, (to be) given when something is distributed; a quantity (of any kind of food) as served in a restaurant

share, cut, ration

a small (usually unwanted) piece; a small amount

tiny bit of something

into very small pieces

atom, piece