English to English

noun (n)

• left-hand page(noun.communication)

  Antonym:
  recto
  

  source: wordnet30
• the side of a coin or medal that does not bear the principal design(noun.artifact)

  Synonym:
  reverse
  Antonym:
  obverse
  

  source: wordnet30
• The reverse, or left-hand, page of a book or a folded sheet of paper; -- opposed to recto.(noun)

  source: webster1913