1. I〔横道〕a side road; a by-road
    • 車は脇道に入った
    • The car turned into [《米》 onto] aside road [by-road]./The car turned off (from) the main road.
  1. II〔本筋からそれる〕
    • 話が脇道にそれてしまった
    • We have gotten off the subject./We have wandered [digressed] from the subject.