seventeen/͵sɛvənˋtin; ˌsev$nˈtiːn◄/number the number 17 十七: a group of seventeen soldiers 一群十七名士兵I’m nearly seventeen (=17 years old). 我差不多十七岁了。 —seventeenth adj , pron : her seventeenth birthday 她的十七岁生日I’m planning to leave on the seventeenth (=the 17th day of the month). 我打算十七号走。