Denshi Jisho — Online Japanese dictionary

利益 りえき 1: profit; gains;
2: benefit; advantage; interest (of the public, etc.)
Common word, Noun, Suru verb 
利益 りやく 1: profit; gains;
2: benefit; advantage; interest (of the public, etc.);
3: grace (of God, Buddha, etc.) (esp. as attained through rightful actions, prayer, adherence to one's faith, etc.); blessing; miracle
Noun, Suru verb 
利益幅 りえきはば profit margin
Noun 
利益率 りえきりつ profit ratio
Noun 
利益社会 りえきしゃかい society based on mutual self-interest
Noun 
利益相反 りえきそうはん conflict of interest
Noun 
利益配当 りえきはいとう dividend; share of profits
Noun, No-adjective 
利益至上主義 りえきしじょうしゅぎ self interest supremacy doctrine; (irresponsible) capitalism
Noun 
利益目的のために りえきもくてきのために for profit; for (financial) gain
Adverb 

You can also

Look up kanji details for 利益.

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