diagram vs image

diagram

verb
  • To represent or indicate something using a diagram. 

  • To schedule the operations of a locomotive or train according to a diagram. 

noun
  • A plan, drawing, sketch or outline to show how something works, or show the relationships between the parts of a whole. 

  • A functor from an index category to another category. The objects and morphisms of the index category need not have any internal substance, but rather merely outline the connective structure of at least some part of the diagram's codomain. If the index category is J and the codomain is C, then the diagram is said to be "of type J in C". 

  • Electrical diagrams show device interconnections. 

  • A graph or chart. 

image

verb
  • To represent by an image or symbol; to portray. 

  • To create an image of. 

  • To create a complete backup copy of a file system or other entity. 

  • To reflect, mirror. 

noun
  • A statue or idol. 

  • What a function maps to. 

  • A file that contains all information needed to produce a live working copy. (See disk image and image copy.) 

  • A form of interference: a weaker "copy" of a strong signal that occurs at a different frequency. 

  • The subset of a codomain comprising those elements that are images of something. 

  • A mental picture of something not real or not present. 

  • A characteristic of a person, group or company etc., style, manner of dress, how one is or wishes to be perceived by others. 

  • An optical or other representation of a real object; a graphic; a picture. 

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