Tension/ˈtenʃn/ Definition 1 of 5Pro Tip 1/2Physical Tightness Understand 'tension' refers to the literal tightness of objects, like ropes or muscles. The bridge's cables were under great tension. Pro Tip 2/2Expressing Pressure 'Tension' can describe the pressure you feel, for example, in a cramped space. There is a lot of tension inside an overcrowded elevator.