gulf vs mountain

gulf

noun
  • A portion of an ocean or sea extending into the land; a partially landlocked sea 

  • The bottom part of a list of those awarded a degree, for those who have only just passed. 

  • That which swallows irretrievably; a whirlpool; a sucking eddy. 

  • A hollow place in the earth; an abyss; a deep chasm or basin. 

  • A large deposit of ore in a lode. 

  • A wide interval or gap; a separating space. 

  • A difference, especially a large difference, between groups. 

verb
  • To award a degree to somebody who has only just passed sufficiently. 

mountain

noun
  • A difficult task or challenge. 

  • An elevation of land of considerable dimensions rising more or less abruptly, forming a conspicuous figure in the landscape, usually having a small extent of surface at its summit. 

  • Something very large in size or quantity; a huge amount; a great heap. 

  • Wine from Malaga made from grapes that grow on a mountain. 

  • A woman's large breast. 

  • The twenty-first Lenormand card. 

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