n.

1. a numerical quantity measured or assigned or computed
   
   • the value assigned was 16 milliseconds
2. the quality (positive or negative) that renders something desirable or valuable
   
   • the Shakespearean Shylock is of dubious value in the modern world
3. the amount (of money or goods or services) that is considered to be a fair equivalent for something else;
   economic value
   
   • he tried to estimate the value of the produce at normal prices
4. relative darkness or lightness of a color; "I establish the colors and principal values by organizing the painting into three values--dark, medium...and light"-Joe Hing Lowe
5. (music) the relative duration of a musical note;
   time value, note value
6. an ideal accepted by some individual or group
   
   • he has old-fashioned values

v.

1. fix or determine the value of; assign a value to
   
   • value the jewelry and art work in the estate
2. hold dear;
   prize, treasure, appreciate
   
   • I prize these old photographs
3. regard highly; think much of;
   respect, esteem, prize, prise
   
   • I respect his judgement
   • We prize his creativity
4. place a value on; judge the worth of something;
   measure, evaluate, valuate, assess, appraise
   
   • I will have the family jewels appraised by a professional
5. estimate the value of;
   rate
   
   • How would you rate his chances to become President?
   • Gold was rated highly among the Romans