Either vs. Whether
Difference Between Either and Whether
Eitherdeterminer
One of two.
You can have it in either colour.Whetherdeterminer
(obsolete) Which of two.
Eitherdeterminer
Each of two; both.
There is a locomotive at either end of the train, one pulling and the other pushing.Whetherpronoun
(obsolete) Which of two.
Eitherpronoun
One or other of two people or things.
He made me two offers, but I did not accept either.Whetherconjunction
(obsolete) Introducing a direct interrogative question (often with correlative or) which indicates doubt between alternatives.
Eitherpronoun
(obsolete) Both, each of two or more.
Whetherconjunction
Used to introduce an indirect interrogative question that consists of multiple alternative possibilities (usually with correlative or).
He chose the correct answer, but I don't know whether it was by luck or by skill.Eitheradverb
As well.
I don't like him, and I don't like her either.Whetherconjunction
Without a correlative, used to introduce a simple indirect question.
Do you know whether he's coming?Eitherconjunction
Introduces the first of two (or occasionally more) options or possibilities, the second (or last) of which is introduced by "or".
Either you eat your dinner or you go to your room.You can have either potatoes or rice with that, but not both.You'll be either early, late, or on time.Whetherconjunction
Used to introduce a disjunctive adverbial clause which qualifies the main clause of the sentence (with correlative or).
He's coming, whether you like it or not.Eitheradverb
after a negative statement used as an intensive meaning something like `likewise' or `also';
he isn't stupid, but he isn't exactly a genius eitherI don't know eitherif you don't order dessert I won't either
