DICT.TW Dictionary Taiwan

 vis·count /ˈvaɪˌkaʊnt/
 子爵

 Vis·count n.
 1. O. Eng. Law An officer who formerly supplied the place of the count, or earl; the sheriff of the county.
 2. A nobleman of the fourth rank, next in order below an earl and next above a baron; also, his degree or title of nobility.  See Peer, n., 3.  [Eng.]
 ◄ ►

 viscount
      n 1: (in various countries) a son or younger brother or a count
      2: a British peer who ranks below an earl and above a baron