function Highlighter()
  let word_cursor = expand('<cword>')
  redir => output
  try
    silent execute '%s/\<'.word_cursor.'\>//gn'
  catch /^Vim\%((\a\+)\)\=:E486/
    return
  endtry
  redir END
  if str2nr(split(output)[0]) > 1
    execute printf('match IncSearch /\<%s\>/', word_cursor)
  endif
endfunction