predic.adj. 1 on fire; burning (they set the old shed alight; is the fire still alight?). 2 lighted up; excited (eyes alight with expectation). [ME, prob. f. phr. on a light (= lighted) fire]
ALIGHT
Meaning of ALIGHT in English
English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012