- either
- ei|ther1 W1S1 [ˈaıðə US ˈi:ðər] conjeither ... ora) used to begin a list of two or more possibilities▪ You add either one or two cloves of garlic.▪ She's the kind of person you either love or hate.see usage note ↑alsob) used to say that if one thing does not happen then something else will have to▪ It's your choice! Either she leaves or I will!▪ £75 seems a lot to pay for a starter motor, but it's either that or a new car!c) an either-or situationa situation in which you cannot avoid having to make a decision or choiceeither 2either2 W1S1 determiner, pron1.) one or the other of two things or people→↑any▪ There's tea or coffee - you can have either.▪ We can offer a comfortable home to a young person of either sex.either of▪ Could either of you lend me five pounds?2.) used to show that a negative statement is true about both of two things or people→↑neither▪ I've lived in New York and Chicago, but don't like either city very much.either of▪ There were two witnesses but I wouldn't trust either of them.3.) either side/end/hand etcboth sides, ends, hands etc= ↑each▪ He sat in the back of the car with a policeman on either side.▪ There are shops at either end of the street.4.) either waya) used to say that something will be the same whichever of two things happens or is true▪ You can get to Edinburgh by train or plane, but either way it's very expensive.b) more or less than a certain amount or measurement▪ A few marks either way can make the difference between a pass and a fail.c) used to say that someone or something does not firmly support or want either one of two things▪ 'All right, let's do that,' said Camille, who didn't care either way.5.) could go either wayif a situation could go either way, both possible results are equally likely▪ The latest opinion poll suggests the vote could go either way.either 3either3 adv1.) [in negatives]used to show that a negative statement is also true about another thing or person, or to add a different negative statement about something or someone→↑neither▪ I haven't seen the movie and my brother hasn't either (=he also has not seen it) .▪ 'I can't swim.' 'I can't, either.'▪ It's not an easy car to drive , and at $40,000 it's not cheap either.2.) me eitherAmE spoken used to say that a negative statement is also true about you▪ 'I don't have any money right now.' 'Me either.'
Dictionary of contemporary English. 2013.