DICT.TW Dictionary Taiwan

 big·a·my /ˈbɪgəmi/
 重婚,重婚罪

 Big·a·my n.  Law The offense of marrying one person when already legally married to another.
 Note: ☞ It is not strictly correct to call this offense bigamy: it more properly denominated polygamy, i. e., having a plurality of wives or husbands at once, and in several statutes in the United States the offense is classed under the head of polygamy.
    In the canon law bigamy was the marrying of two virgins successively, or one after the death of the other, or once marrying a widow.  This disqualified a man for orders, and for holding ecclesiastical offices.  Shakespeare uses the word in the latter sense.
    Base declension and loathed bigamy.   --Shak.
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 bigamy
      n 1: having two spouses at the same time
      2: the offense of marrying someone while you have a living
         spouse from whom no valid divorce has occurred