/təʊn ||; ton/noun1 [C,U] the quality of a sound or of sb's voice, especially expressing a particular emotion 音调；音质；语调；语气: ‘Do you know each other?’ she asked in a casual tone of voice. 她随口问道﹕“你们互相认识吗？”
2 [sing] the general quality or style of sth 风格；格调: The tone of the meeting was optimistic. 这次会议的基调是乐观的。
3 [C] a shade of a colour 色调: warm tones of red and orange 红色和橙色的暖色调
4 [C] a sound that you hear on the telephone 打电话时听到的信号: Please speak after the tone (= an instruction on an answering machine). 听到电话录音机的指令就请说话。
5 [C] one of the longer steps between the notes in a musical scale, for example between C and D, or between E and F# 全音（如介于C与D或E与F#之间的） ☞Compare semitone. 与semitone比较。