1none 
/ˈnʌn/ pronoun
/ˈnʌn/ pronoun : not any of a group of people or things : no amount or part of something
▪ None of this was necessary. ▪ Why are all the guests standing in the kitchen and none sitting in the living room? ▪ Half a piece is better than none. ▪ The frozen yogurt tastes like ice cream but has none of the fat (that ice cream has). ▪ Though the languages are related they share almost/virtually none of the same vocabulary. ▪ None of it is finished yet. ▪ “Can I have some soup?” “I'm afraid there's none left.” [=there is no more soup; no soup remains] ▪ None of the birds was/were singing. ▪ Of all the competitions, none is/are more important than this one. = Of all the competitions, there is/are none as important as this one. ▪ To cut back on cholesterol my doctor said I should eat less meat or none at all. ▪ “You have no doubts?” “None whatsoever.” ▪ This is none of your affair/business. [=you should not interfere in this situation; it is not proper for you to say, do, or ask anything about this]
▪ None of this was necessary. ▪ Why are all the guests standing in the kitchen and none sitting in the living room? ▪ Half a piece is better than none. ▪ The frozen yogurt tastes like ice cream but has none of the fat (that ice cream has). ▪ Though the languages are related they share almost/virtually none of the same vocabulary. ▪ None of it is finished yet. ▪ “Can I have some soup?” “I'm afraid there's none left.” [=there is no more soup; no soup remains] ▪ None of the birds was/were singing. ▪ Of all the competitions, none is/are more important than this one. = Of all the competitions, there is/are none as important as this one. ▪ To cut back on cholesterol my doctor said I should eat less meat or none at all. ▪ “You have no doubts?” “None whatsoever.” ▪ This is none of your affair/business. [=you should not interfere in this situation; it is not proper for you to say, do, or ask anything about this]
have none of
: to refuse to accept, allow, or be influenced by (a particular behavior) : to not allow someone to do (something)
▪ I will have none of that kind of talk in my house. ▪ The group petitioned to have the votes counted again, but the government would have none of that. ▪ They begged their mother to take them out for ice cream, but she was having none of it.
▪ I will have none of that kind of talk in my house. ▪ The group petitioned to have the votes counted again, but the government would have none of that. ▪ They begged their mother to take them out for ice cream, but she was having none of it.
none but
somewhat formal : no person or kind of person except : only
▪ a sport for none but the most brave ▪ It was a request that none but the most coldhearted (person) could refuse.
▪ a sport for none but the most brave ▪ It was a request that none but the most coldhearted (person) could refuse.
none other than
— used to show that you are surprised or impressed by the person or thing you are about to mention ▪ It turns out I was sitting next to none other than the founder of the magazine. ▪ None other than my favorite actor was cast in the lead role.
none the less
second to none
: better than all others of the same kind
▪ His cakes are second to none. [=the cakes he makes are better than all other cakes] ▪ The city's public transportation system is second to none.
▪ His cakes are second to none. [=the cakes he makes are better than all other cakes] ▪ The city's public transportation system is second to none.
