Denshi Jisho — Online Japanese dictionary

宵 よい evening; early night hours
Common word, Adverbial noun, Temporal noun 
今宵 こよい this evening; tonight
Adverbial noun, Temporal noun 
待宵 まつよい 1: (Archaism) night where one waits for someone who is supposed to come;
2: (Archaism) night of the 14th day of the eight month of the lunar calendar
Noun 
一宵 いっしょう one evening; one night
Noun, Archaism 
徹宵 てっしょう all night; without sleep
Noun, Suru verb 
半宵 はんしょう midnight
Noun 
春の宵 はるのよい spring evening
Expression 
終宵 しゅうしょう all-night long
Noun 
春宵 しゅんしょう spring evening
Noun 

You can also

Look up kanji details for *宵.

Try a Yahoo Jisho search for *宵 .
Try a Goo Jisho search for *宵 .
Try a Google search for *宵 .