이전以前 previous time; before 이후以後 later time; the future 이내以內 within; less than; not more than 이상以上 or more; and over 이외以外 the others; being other than 이하以下 and below; and less 이남以南 south 이래以來 since 이북以北 north 이실직고以實直告 telling of the truth 이심전심以心傳心 mental communication; telepathy 이열치열以熱治熱 fighting fire with fire 이전번以前番 last time; the other day