tune
  Pronunciation: (tn, tyn), [key]    — n., v., tuned, tun•ing. 
  
  
 —n.  - a succession of musical sounds forming an air or melody, with or without the harmony accompanying it.  
  - a musical setting of a hymn, poem, psalm, etc., usually in four-part harmony.  
  - the state of being in the proper pitch: to be in tune. 
  - agreement in pitch; unison; harmony.  
  - proper adjustment, as of radio instruments or circuits with respect to frequency.  
  - harmonious relationship; accord; agreement.  
  - frame of mind; mood.  
  - a tone or sound.  
  - to decide matters of policy; control: He was technically running the business, but his father still called the tune. 
  - to reverse one's views; change one's mind: She changed her tune about children when she married and had her own. 
  - 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. 
  - in or about the amount of: In order to expand, they will need capital to the tune of six million dollars. 
  
  
 —v.t.  - to adjust (a musical instrument) to a correct or given standard of pitch (often fol. by up).  
  - to adapt (the voice, song, etc.) to a particular tone, to the expression of a particular feeling, or the like.  
  - to bring (someone or something) into harmony.  
  - to adjust (a motor, mechanism, or the like) for proper functioning.  
  -   
   -  to adjust (a circuit, frequency, or the like) so as to bring it into resonance with another circuit, a given frequency, or the like. 
  -  to adjust (a receiving apparatus) so as to make it compatible in frequency with a transmitting apparatus whose signals are to be received. 
  -  to adjust (a receiving apparatus) so as to receive the signals of a particular transmitting station. 
  
 - to put into or cause to be in a receptive condition, mood, etc.; bring into harmony or agreement.  
  -   
   -  to utter, sound, or express musically. 
  -  to play upon (a lyre). 
  
 
  
 —v.i.  - to put a musical instrument in tune (often fol. by up).  
  - to give forth a musical sound.  
  - to be in harmony or accord; become responsive.  
  - to adjust a radio or television set so as to receive (signals, a particular station, etc.).  
  -   
   -  to adjust a radio or television set so as to stop or avoid receiving (a station or channel). 
  -  Slang.to stop paying attention to a person, situation, etc. 
  
 -  Before starting on our trip we should have the car tuned up. 
   -  to cause a group of musical instruments to be brought to the same pitch. 
  -  to begin to sing. 
  -  to bring into proper operating order, as a motor:Before starting on our trip we should have the car tuned up. 
  
 
  
  Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.