a lot vs bis

a lot

adv
  • Often; frequently. 

  • Very much; a great deal; to a large extent. 

pron
  • A large amount. 

  • Many things, much. 

bis

adv
  • Twice; showing that something is, or is to be, repeated, such as a passage of music, or an item in accounts. 

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