illustration meaning
EN
[-eɪʃən] WIllustration
- An illustration is a visualization or a depiction of a subject made by an artist, such as a drawing, sketch, painting, photograph, or other kind of image of things seen, remembered or imagined, using a graphical representation.
- Illustrations are often carried out as a large-scale industrial process, and is an essential part of publishing and transaction printing.
- ^ cf. the freely available international Database of Scientific Illustrators 1450-1950 with 20 search fields and currently nearly 7000 entries of illustrators in science, medicine & technology active prior to 1950
FR illustration 
- NounPLillustrationsPREill-SUF-ation
- The act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct.
- That which illustrates; a comparison or example intended to make clear or apprehensible, or to remove obscurity.
- England will regard it as a measure of justice for Frank Lampard's disallowed goal against Germany in Bloemfontein at the 2010 World Cup - but it was also an illustration of how they rode their luck for long periods in front of a predictably partisan home crowd.
- A picture designed to decorate a volume or elucidate a literary work.
- A calculated prevision of insurance premiums and returns (life insurance).
- The act of illustrating; the act of making clear and distinct; education; also, the state of being illustrated, or of being made clear and distinct.
- More Examples
- Used in the Middle of Sentence
- Finally, he recalled that, in 1963, 11 blades “with more or less typical aurignacoid traits” were collected in layer D, and provides as corroborating illustrations nos. 9–10 of our Fig 4 .
- Used in the Middle of Sentence
Definition of illustration in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
Source: Wiktionary
Grammatically, this word "illustration" is a noun, more specifically, a countable noun.