1) Brighten up 2) French word used in English 3) Illume 4) Illuminate 5) Light 6) Light up 7) Lighten 8) Lighten up 9) Make lighter or brighter 10) Shed light on 11) Shed some light on 12) Throw some light on 13) To illuminate 14) To light up Found on https://www.crosswordclues.com/clue/illumine
Il·lu'mine transitive verb [ Confer French illuminer . See Illuminate .] To illuminate; to light up; to adorn. Found on http://www.encyclo.co.uk/webster/I/9