illuminate verb
1 give light to sth
ADV. brightly, clearly | dimly, faintly, softly The room was dimly illuminated by the soft glow of his bedside lamp. | briefly | suddenly
2 make sth clear
ADV. greatly, vividly an incident which vividly illuminated the problems we faced
VERB + ILLUMINATE help (to) The study of the present also helps to illuminate the past.
You can also check other dicts: illuminate (English, 中文解释 ), wordnet sense, Collins Definition