Denshi Jisho — Online Japanese dictionary

えき 1: benefit; use; good; advantage; gain;
2: profit; gains
Common word, Noun 
やく 1: benefit; use; good; advantage; gain;
2: profit; gains
Noun 
よう 1: benefit; use; good; advantage; gain;
2: profit; gains
Noun 
やくち bitter seeded cardamon
Noun 
ますます increasingly; more and more; decreasingly; less and less
Adverb, Usually written using kana alone 
ますます increasingly; more and more; decreasingly; less and less
Common word, Adverb, Usually written using kana alone 
えききん profit
Noun 
えきゆう good friend; useful friend
Noun 
ますひと people; subjects; populace
Noun, Archaism 
ますます increasingly; more and more; decreasingly; less and less
Adverb, Usually written using kana alone 
する えきする to benefit (someone); to be useful
Suru verb - special class, Transitive verb 
荒男 ますらお hero; manly person; warrior
Noun, Na-adjective 
えきちゅう useful insect
Noun 
えきちょう beneficial bird
Noun 
荒猛男 ますらたけお brave and stalwart man
Noun 
体もない やくたいもない useless; worthless; absurd; baloney
Expression 
者三友 えきしゃさんゆう There are three types of friends worth having--honest, sincere, and well-informed ones. (Confucius)
Expression 
を与える人 えきをあたえるひと benefactor
Expression 

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