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resonance (n.)

mid-15c., resonaunce, in acoustics, "prolongation of sound by reverberation;" 1660s, "act of resonating;" from French resonance (15c.) and directly from Latin resonantia "echo," from resonare "to sound again" (see resound). Earlier in same sense was resonation (early 15c.).

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Definitions of resonance from WordNet

resonance (n.)
an excited state of a stable particle causing a sharp maximum in the probability of absorption of electromagnetic radiation;
resonance (n.)
a vibration of large amplitude produced by a relatively small vibration near the same frequency of vibration as the natural frequency of the resonating system;
resonance (n.)
having the character of a loud deep sound; the quality of being resonant;
Synonyms: plangency / reverberance / ringing / sonorousness / sonority / vibrancy
resonance (n.)
a relationship of mutual understanding or trust and agreement between people;
Synonyms: rapport
resonance (n.)
the quality imparted to voiced speech sounds by the action of the resonating chambers of the throat and mouth and nasal cavities;
From wordnet.princeton.edu