1) тон
2) тембр
3) нота
4) тональный сигнал
5) цветовой тон; оттенок ( цвета ) ; полутон || тонировать
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- broken tone
- busy tone
- color tone
- combination tone
- cue tone
- deep tone
- dialing tone
- dial tone
- difference tone
- engaged tone
- face tone
- fundamental tone
- gray tone
- intrusion tone
- light tone
- middle tone
- number-unobtainable tone
- pilot tone
- pip-pip tone
- pure tone
- ringing tone
- shadow tones
- signalling tone
- signaling tone
- simple tone
- single-frequency tone
- stressing tone
- switching tone