meaning of resonance
1. The act of resounding; the quality or state of being resonant.
2. 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.
3. the quality imparted to voiced speech sounds by the action of the resonating chambers of the throat and mouth and nasal cavities