Denshi Jisho — Online Japanese dictionary

1: seven;
2: (Prefix) hepta-
Numeric 
しち 1: seven;
2: (Prefix) hepta-
Common word, Numeric 
なな 1: seven;
2: (Prefix) hepta-
Numeric 
ごしち 1: five and seven;
2: (Abbreviation) 35th day after a person's death
Noun 
じゅうしち 17; seventeen
Common word, Noun 
じゅうなな 17; seventeen
Noun 
セシウム百三十 セシウムひゃくさんじゅうしち cesium 137 (Cs-137); caesium 137
Noun 

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