Look up: Either

1. either
   [adv] - after a negative statement used as an intensive meaning something like `likewise` or `also`
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Either
   Ei'ther (ē'&thlig;ẽr or ī'&thlig;ẽr; 277) adjective & pron. [ Middle English either , aither , Anglo-Saxon ǣgðer , ǣghwæðer (akin to Old High German ēogiwedar...
   Found on http://www.encyclo.co.uk/webster/E/15
   
   
3. Either
   Ei'ther conj. Either precedes two, or more, coördinate words or phrases, and is introductory to an alternative. It is correlative to or . « Either he is talking, or he is pursuing, or he is in a journey, or pe...
   Found on http://www.encyclo.co.uk/webster/E/15
   
   
4. either
   1. One of two; the one or the other; properly used of two things, but sometimes of a larger number, for any one. 'Lepidus flatters both, Of both is flattered; but he neither loves, Nor either cares for him.' (Shak) 'Scarce a palm of ground could be gotten by either of the three.' (Bacon) 'There have...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
5. either
   adverb 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 either`; `I don`t know either`; `if you don`t order dessert I won`t either`
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
6. Either
   • (a. & pron.) Each of two; the one and the other; both; -- formerly, also, each of any number. • (conj. Either) precedes two, or more, coordinate words or phrases, and is introductory to an alternative. It is correlative to or. • (a. & pron.) One of two; the one or the other; -- prop...
   Found on http://thinkexist.com/dictionary/meaning