Swan vs dive

Swan

noun
  • someone connected with Swansea City Football Club, as a fan, player, coach, etc. 

  • someone connected with the Sydney Swans, as a fan, player, coach, etc. 

name
  • A surname transferred from the nickname. 

dive

noun
  • A downward swooping motion. 

  • A swim under water. 

  • A jump or plunge into water. 

  • Aerial descent with the nose pointed down. 

  • A deliberate fall after a challenge. 

  • A decline. 

  • A seedy bar, nightclub, etc. 

  • A headfirst jump toward the ground or into another substance. 

verb
  • To deliberately fall down after a challenge, imitating being fouled, in the hope of getting one's opponent penalised. 

  • To descend sharply or steeply. 

  • To cause to descend, dunk; to plunge something into water. 

  • To jump headfirst toward the ground or into another substance. 

  • To undertake with enthusiasm. 

  • To swim under water. 

  • To explore by diving; to plunge into. 

  • To plunge or to go deeply into any subject, question, business, etc.; to penetrate; to explore. 

  • To jump into water head-first. 

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