1. 2つのものを接触させる行為(特にコミュニケーションのために)(the act of bringing two things into contact (especially for communication))
2. ある交通手段から他の交通手段への乗り換え(shifting from one form of transportation to another)
3. つながる手段(an instrumentality that connects)
4. 思考や出来事を記憶や想像で結合する過程(the process of bringing ideas or events together in memory or imagination)
5. 物事または出来事の関連(例えば1つがもう一方を引き起こす、あるいは1つがもう一方と共通点を持つ)(a relation between things or events (as in the case of one causing the other or sharing features with it))