A verb that that links two parts of a sentence, indicating that one part is the property of the other. The part which indicates the property is the nominal part.
A word (often but not always a verb) that links the subject of a sentence with a predicate.
an equating verb (such as `be' or `become') that links the subject with the complement of a sentence
an equating verb (such as `be'' or `become'') that links the subject with the complement of a sentence
