Denshi Jisho — Online Japanese dictionary

姓 せい 1: surname; family name;
2: hereditary title (used in ancient Japan to denote rank and political standing)
Common word, Noun 
姓 そう surname; family name
Out-dated or obsolete kana, Noun 
姓 かばね 1: hereditary title (used in ancient Japan to denote rank and political standing);
2: (Archaism) clan
Noun 
姓 しょう surname; family name
Out-dated or obsolete kana, Noun 
姓氏 せいし full name; family name
Noun 
姓名 せいめい full name
Common word, Noun 
姓が変わる せいがかわる to assume a new surname
Expression, Godan verb with ru ending 
姓名判断 せいめいはんだん fortunetelling based on writing or pronunciation of one's name
Noun 
姓名不詳 せいめいふしょう unidentified; name unknown
Noun, No-adjective 

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