AnalyzerSentence analysis3SpansSentence上司に歯向かう1000 character limitAnalyzeSentence上じょう司しに歯は向むかうSpan Details上じょう司しsuperior; boss; higher-upnounにdirection, time, indirect object, or target markergrammar歯は向むかうdefy; oppose; rise against; turn ongodan verb