twilight noun
ADJ. gathering, thickening
TWILIGHT + NOUN world (figurative) the twilight world of the occult | zone (figurative) the twilight zone between living and merely existing | years (figurative) a forgotten man who spent his twilight years alone
PREP. at ~, in/into the ~ She walked away into the thickening twilight.
PHRASES in the twilight of your career/life
You can also check other dicts: twilight (English, 中文解释 ), wordnet sense, Collins Definition