docs: def nearby(word):
      '''
      Nearby word
      '''
      w = any2unicode(word)
      # read from cache
      if w in _cache_nearby: return _cache_nearby[w]
  
      words, scores = [], []
      try:
          for x in _vectors.neighbours(w):
              words.append(x[0])
              scores.append(x[1])
      except: pass # ignore key error, OOV
      # put into cache
      _cache_nearby[w] = (words, scores)
      return words, scores