define vs noun

define

verb
  • To state the meaning of a word, phrase, sign, or symbol. 

  • 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. 

noun
  • A kind of macro in source code that replaces one text string with another wherever it occurs. 

noun

verb
  • To convert a word to a noun. 

noun
  • A word that functions as the name of a specific object or set of objects, such as person, animal, place, thing, phenomenon, substance, quality, or idea; one of the basic parts of speech in many languages, including English. 

  • An object within a user interface to which a certain action or transformation (i.e., verb) is applied. 

How often have the words define and noun occurred in a corpus of books? (source: Google Ngram Viewer )