Denshi Jisho — Online Japanese dictionary

しょうかい introduction; referral
Common word, Noun, Suru verb, No-adjective 
介者 しょうかいしゃ person who introduces someone; introducer
Common word, Noun 
介文 しょうかいぶん introductory essay
Common word, Noun 
興酒 しょうこうしゅ shaoxingjiu (Chinese alcohol made from rice or glutinous millet)
Noun, chi: 
介記事 しょうかいきじ introductory article; advertisement
Noun 
介状 しょうかいじょう letter of introduction
Noun 

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