Denshi Jisho — Online Japanese dictionary

上等 じょうとう 1: superiority; first-class; very good;
2: (that's) just fine!; bring it on!
Common word, Na-adjective, No-adjective, Noun 
上等 じょうとうひん first-class article
Noun 
上等 じょうとうへい private first-class (army); airman first class (air force); lance corporal (US Marines; Commonwealth military); seaman (navy)
Noun 
上等兵曹 じょうとうへいそう chief petty officer
Noun 

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