fourth の英語での意味
fourthfourth1 /fɔːθ $ fɔːrθ/ adjective 
すべての翻訳を見る coming after three other things in a series一連の中で三番目の次にくる: 
in the fourth century4世紀に her fourth birthday彼女の4歳の誕生日—fourthly adverb
すべての翻訳を見る coming after three other things in a series一連の中で三番目の次にくる: in the fourth century4世紀に her fourth birthday彼女の4歳の誕生日—fourthly adverbfourthfourth3 noun [countable] ¼; one of four equal parts¼；四等分の一つone-fourth/three-fourths → quarter1(1)
¼; one of four equal parts¼；四等分の一つone-fourth/three-fourths → quarter1(1)