(usually plural) an ulterior implicit meaning or quality
One of the harmonics faintly heard with and above a tone as it dies away, produced by some aliquot portion of the vibrating sting or column of air which yields the fundamental tone; one of the natural harmonic scale of tones, as the octave, twelfth, fifteenth, etc.; an aliquot or "partial" tone; a harmonic. See 
Noun
 a harmonic with a frequency that is a multiple of the fundamental frequency
Noun
 (usually plural) an ulterior implicit meaning or quality; "overtones of despair"
n.
 One of the harmonics faintly heard with and above a tone
   as it dies away, produced by some aliquot portion of the vibrating
   sting or column of air which yields the fundamental tone; one of the
   natural harmonic scale of tones, as the octave, twelfth, fifteenth,
   etc.; an aliquot or "partial" tone; a harmonic. See Harmonic, and Tone.
Overtone
One of the harmonics faintly heard with and above a tone as it dies away, produced by some aliquot portion of the vibrating sting or column of air which yields the fundamental tone; one of the natural harmonic scale of tones, as the octave, twelfth, fifteenth, etc.; an aliquot or "partial" tone; a harmonic. See 
Usage Examples
Overtone, Overtone, vertone, Overtone, Ocvertone, Ofvertone, Ogvertone, Obvertone, O vertone, Ocertone, Ofertone, Ogertone, Obertone, O ertone, Ovcertone, Ovfertone, Ovgertone, Ovbertone, Ov ertone, Ovwertone, Ov3ertone, Ov4ertone, Ovrertone, Ovsertone, Ovdertone, Ovwrtone, Ov3rtone, Ov4rtone, Ovrrtone, Ovsrtone, Ovdrtone, Ovewrtone, Ove3rtone, Ove4rtone, Overrtone, Ovesrtone, Ovedrtone, Oveertone, Ove4rtone, Ove5rtone, Ovetrtone, Ovefrtone, Oveetone, Ove4tone, Ove5tone, Ovettone, Oveftone, Overetone, Over4tone, Over5tone, Overttone, Overftone, Overrtone, Over5tone, Over6tone, Overytone, Overgtone, Overrone, Over5one, Over6one, Overyone, Overgone, Overtrone, Overt5one, Overt6one, Overtyone, Overtgone, Overtione, Overt9one, Overt0one, Overtpone, Overtlone, Overtine, Overt9ne, Overt0ne, Overtpne, Overtlne, Overtoine, Overto9ne, Overto0ne, Overtopne, Overtolne, Overtobne, Overtohne, Overtojne, Overtomne, Overto ne, Overtobe, Overtohe, Overtoje, Overtome, Overto e, Overtonbe, Overtonhe, Overtonje, Overtonme, Overton e, Overtonwe, Overton3e, Overton4e, Overtonre, Overtonse, Overtonde, Overtonw, Overton3, Overton4, Overtonr, Overtons, Overtond, Overtonew, Overtone3, Overtone4, Overtoner, Overtones, Overtoned.
