#1 illuminate v. [light, illume, illumine, light up] make lighter or brighter; "This lamp lightens the room a bit". wn
#2 illuminate v. [clear, clear up, shed light on, crystallize, crystallise, crystalize, crystalise, straighten out, sort out, enlighten, elucidate] make free from confusion or ambiguity; make clear; "Could you clarify these remarks?"; "Clear up the question of who is at fault". wn
#3 illuminate v. add embellishments and paintings to (medieval manuscripts). wn
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