DuckCorp Dico

Found 2 definitions

1.                 From Japanese-English FreeDict Dictionary ver. 0.1:
                   
   
   
                   
                     
    [ichi1]  [news1]  [nf01]  三 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, ３, 参 /(en)tʃˈaɪniːz(ja)lˈe̞tə/,  [ichi1]  [news1]  [nf01]  さん /sˈäɴ/,  [ichi1] み /mˈi/
   1. (numeric)
    (参 is used in legal documents)
   three
   2. (prefix)
   tri-
   
                   
                 

2.                 From Japanese-English FreeDict Dictionary ver. 0.1:
                   
   
   
                   
                     
   参 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, しん /ɕˈiɴ/
   (noun (common) (futsuumeishi))
   二十八宿, 白虎・びゃっこ・2 [astronomy, etc. term] Chinese "Three Stars" constellation (one of the 28 mansions)