not the one nor the other of two people or things; not either: [as determiner]:neither side of the brain is dominant over the other [as pronoun]:neither of us believes it
1used before the first of two (or occasionally more) alternatives (the others being introduced by ‘nor’) to indicate that they are each untrue or each does not happen:I am neither a liberal nor a conservative
2used to introduce a further negative statement:he didn’t remember, and neither did I
