ditto vs hum

ditto

intj
  • Used as an expression of agreement with what another person has said, or to indicate that what they have said equally applies to the person being addressed. 

adv
  • As said before, likewise. 

verb
  • To make a copy using a ditto machine. 

  • To repeat the aforesaid, the earlier action etc. 

noun
  • The ditto mark, 〃; a symbol, represented by two apostrophes, inverted commas, or quotation marks (" "), indicating that the item preceding is to be repeated. 

  • That which was stated before, the aforesaid, the above, the same, likewise. 

  • A suit of clothes of the same colour throughout. 

  • A duplicate or copy of a document, particularly one created by a spirit duplicator. 

  • A copy; an imitation. 

hum

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

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

noun
  • 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. 

  • Busy activity, like the buzz of a beehive. 

  • 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 

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