[toon, tyoon] 
noun, verb, tuned, tun⋅ing.| 1. | a succession of musical sounds forming an air or melody, with or without the harmony accompanying it. |
| 2. | a musical setting of a hymn, poem, psalm, etc., usually in four-part harmony. |
| 3. | the state of being in the proper pitch: to be in tune. |
| 4. | agreement in pitch; unison; harmony. |
| 5. | proper adjustment, as of radio instruments or circuits with respect to frequency. |
| 6. | harmonious relationship; accord; agreement. |
| 7. | Archaic. frame of mind; mood. |
| 8. | Obsolete. a tone or sound. |
| 9. | to adjust (a musical instrument) to a correct or given standard of pitch (often fol. by up). |
| 10. | to adapt (the voice, song, etc.) to a particular tone, to the expression of a particular feeling, or the like. |
| 11. | to bring (someone or something) into harmony. |
| 12. | to adjust (a motor, mechanism, or the like) for proper functioning. |
| 13. | Radio and Television.
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| 14. | to put into or cause to be in a receptive condition, mood, etc.; bring into harmony or agreement. |
| 15. | Archaic.
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| 16. | to put a musical instrument in tune (often fol. by up). |
| 17. | to give forth a musical sound. |
| 18. | to be in harmony or accord; become responsive. |
| 19. | tune in, to adjust a radio or television set so as to receive (signals, a particular station, etc.). |
| 20. | tune out,
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| 21. | tune up,
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| 22. | call the tune, to decide matters of policy; control: He was technically running the business, but his father still called the tune. |
| 23. | change one's tune, to reverse one's views; change one's mind: She changed her tune about children when she married and had her own. |
| 24. | sing a different tune, to be forced to change one's ways, attitude, behavior, etc.: He will sing a different tune when he has to earn his own money. |
| 25. | to the tune of, Informal. in or about the amount of: In order to expand, they will need capital to the tune of six million dollars. |
