To invite someone in; to show or lead a person into a room or building.
彼女は笑顔で客を招き入れた。
She welcomed the guest in with a smile.
暗くて寒いので、どうぞ中へ招き入れてください。
It's dark and cold, so please invite us in.
受付の係が訪問者を会議室に招き入れた。
The receptionist showed the visitor into the conference room.