baa vs em

baa

noun
  • The letter ب in the Arabic script. 

  • The characteristic cry or bleating of a sheep. 

verb
  • To make the characteristic cry of a sheep. 

intj
  • The characteristic cry of a sheep. 

em

noun
  • The name of the Latin-script letter M. 

  • A unit of measurement equal to the height of the type in use. 

  • The name of the Cyrillic script letter М / м. 

pron
  • A gender-neutral third-person singular object pronoun, the objective case of ey, equivalent to the singular them and coordinate with him and her. 

intj
  • a form of hesitant speech, or an expression of uncertainty; um; umm; erm 

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