tone

1. A specific pitch.
2. (in the diatonic scale) An interval of a major second.
3. (in a Gregorian chant) A recitational melody.
4. The character of a sound, especially the timbre of an instrument or voice.
5. General character, mood, or trend.

   Her rousing speech gave an upbeat tone to the rest of the evening.

6. The pitch of a word that distinguishes a difference in meaning, for example in Chinese.
7. A whining style of speaking; a kind of mournful or artificial strain of voice; an affected speaking with a measured rhythm and a regular rise and fall of the voice.

   Children often read with a tone.

8. The manner in which speech or writing is expressed.
9. State of mind; temper; mood.
10. The shade or quality of a colour.
11. The favourable effect of a picture produced by the combination of light and shade, or of colours.

    This picture has tone.

12. The definition and firmness of a muscle or organ; see also: tonus.
13. The state of a living body or of any of its organs or parts in which the functions are healthy and performed with due vigor.
14. Normal tension or responsiveness to stimuli.
15. A gun

1. To give a particular tone to
2. To change the colour of
3. To make (something) firmer
4. To harmonize, especially in colour
5. To utter with an affected tone.

pronoun

The one (of two)