What is the meaning of Illuminator?

Agent noun of illuminate:

  1. One who illuminates; an explainer.
  2. An artist who adds illustrations and decorations to illuminated manuscripts.

One who illuminates; an explainer.

An artist who adds illustrations and decorations to illuminated manuscripts.

one that lights a source of illumination, such as a lamp

one that gives light or grants enlightenment

second/third-person singular future passive imperative of illūminō

Source: wiktionary.org