creak vs maa

creak

verb
  • To produce a creaking sound with. 

  • To make a prolonged sharp grating or squeaking sound, as by the friction of hard substances. 

  • To suffer from strain or old age. 

noun
  • The sound produced by anything that creaks; a creaking. 

maa

verb
  • To make such a sound. 

intj
  • A bleating sound, as that of a sheep or goat. 

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