resonance
Pronunciation: /ˈrɛz(ə)nəns/
noun
- 1the quality in a sound of being deep, full, and reverberating: the resonance of his voice
- the power to evoke enduring images, memories, and emotions: the concepts lose their emotional resonance
- 2 Physics the reinforcement or prolongation of sound by reflection from a surface or by the synchronous vibration of a neighbouring object.
- 3the condition in which an electric circuit or device produces the largest possible response to an applied oscillating signal.
- Mechanics the condition in which an object or system is subjected to an oscillating force having a frequency close to its own natural frequency.
- 4 Astronomy the occurrence of a simple ratio between the periods of revolution of two bodies about a single primary.

Origin:
late Middle English: from Old French, from Latin resonantia 'echo', from resonare 'resound' (see resonant)