attention vs hum

attention

noun
  • A state of alertness in the standing position. 

  • A technique in neural networks that mimics cognitive attention, enhancing the important parts of the input data while giving less priority to the rest. 

  • Mental focus. 

  • An action or remark expressing concern for or interest in someone or something, especially romantic interest. 

intj
  • A call for people to be quiet/stop doing what they are presently doing and pay heed to what they are to be told or shown. 

  • Used as a command to bring soldiers to the attention position. 

hum

noun
  • Busy activity, like the buzz of a beehive. 

  • Unpleasant odour. 

  • A phenomenon, or collection of phenomena, involving widespread reports of a persistent and invasive low-frequency humming, rumbling, or droning noise not audible to all people. 

  • A hummed tune, i.e. created orally with lips closed. 

  • An often indistinct sound resembling human humming. 

verb
  • To produce low sounds which blend continuously 

  • To express by humming. 

  • To reek, smell bad. 

  • To make a sound from the vocal chords without pronouncing any real words, with one's lips closed. 

  • To drone like certain insects naturally do in motion, or sounding similarly 

  • To buzz, be busily active like a beehive 

intj
  • Synonym of um: a noise indicating doubt, uncertainty, &c. 

  • Synonym of hmm: a noise indicating thought, consideration, &c. 

How often have the words attention and hum occurred in a corpus of books? (source: Google Ngram Viewer )