0 vs none

0

• 0. 

• The off or low bit state. 

• The origin, starting point, or fixed reference point, especially for a measurement. 

none

• Not any; no (usually used only before a vowel or h) 

• A person without religious affiliation. 

• Not at all, not very. 

• To no extent, in no way. 

• Not any of a given number or group. 

• No one, nobody. 

• No person.