Denshi Jisho — Online Japanese dictionary

暗闇 くらやみ darkness; the dark
Common word, Noun 

You can also

Look up kanji details for 暗闇.

Try a Yahoo Jisho search for 暗闇 .
Try a Goo Jisho search for 暗闇 .
Try a Google search for 暗闇 .