V in WordNet English dictionary

1. the cardinal number that is the sum of four and one
   five  5  V  cinque  quint  quintet  fivesome  quintuplet  pentad  fin  Phoebe  Little Phoebe 
   
2. a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite
   vanadium  V  atomic number 23 
   
3. the 22nd letter of the Roman alphabet
   V  v 
   
4. a unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it
   volt  V 
   
5. the 22nd letter of the Roman alphabet
   V  v