To describe, explain, or make definite and clear; used to request the listener or other person to elaborate or explain more clearly his or her intended meaning of a word or expression.
To establish the referent of a term or notation.
To express the essential nature of something.
To determine with precision; to mark out with distinctness; to ascertain or exhibit clearly.
To demark sharply the outlines or limits of an area or concept.
To state the meaning of a word, phrase, sign, or symbol.
A kind of macro in source code that replaces one text string with another wherever it occurs.