also vs less

also

adv

  • In addition; besides; as well; further; too. 

less

conj

  • unless 

noun

  • A smaller amount or quantity. 

prep

  • Minus; not including 

adv

  • To a smaller extent or degree. 

  • Used for constructing syntactic diminutive comparatives of adjectives and adverbs. 

det

  • Fewer; a smaller number of. 

  • A smaller amount of; not as much. 

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