Focus on the pronunciation of pendulum
English definition of “pendulum”
/ˈpen·dʒə·ləm/ n [C]
› a device consisting of a weight hanging on a rod or cord that moves from one side to the other, esp. one that forms a part of a clock › A pendulum is also power or control of an activity that changes from one group to another: In labor-management relations, the pendulum has swung wildly in the direction of the players.