neither

determiner
  1. not one or the other of two people or things
  2. Usage: used before singular nouns
pronoun
  1. not one or the other of two people or things
  2. Usage: takes singular verb
adverb
  1. also not; used to show agreement with a negative statement
  2. Usage: often followed by auxiliary verb and subject
conjunction
  1. used with ‘nor’ to introduce two negative alternatives
  2. Usage: part of correlative conjunction ‘neither…nor’

Examples