DuckCorp

DuckCorp Dico

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Found one definition 

  1.                 From Japanese-English FreeDict Dictionary ver. 0.1:
                

    
                
                  
    ー /(en)dʒˈapəniːz(ja)lˈe̞tə/
(noun (common) (futsuumeishi))
 (known as ちょうおん)
long vowel mark (usually only used in katakana)