either(introduces the first of two options) conjunction [UK: ˈaɪ.ðə(r)] [US: ˈiː.ðər]
neither … nor(used for showing that something is not true of two or more people, things, actions, qualities, or ideas) conjunction [UK: ˈnaɪ.ðə(r) nɔː(r)] [US: ˈniː.ðər ˈnɔːr]