resonance

• having the character of a loud deep sound
• a relationship of mutual understanding or trust and agreement between people
• an excited state of a stable particle causing a sharp maximum in the probability of absorption of electromagnetic radiation
• 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
• the quality imparted to voiced speech sounds by the action of the resonating chambers of the throat and mouth and nasal cavities
• The act of resounding
• A prolongation or increase of any sound, either by reflection, as in a cavern or apartment the walls of which are not distant enough to return a distinct echo, or by the production of vibrations in other bodies, as a sounding-board, or the bodies of musical instruments

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