porpoise vs soar

porpoise

verb
  • Said of an aircraft: to make a series of plunges when taking off or landing; or of a watercraft: to successively plunge up and down in the water. 

  • Said of an air-breathing aquatic animal such as a porpoise or penguin: To repeatedly jump out of the water to take a breath and dive back in a continuous motion. 

noun
  • Any small dolphin. 

  • A small cetacean of the family Phocoenidae, related to dolphins and whales. 

soar

verb
  • To remain aloft by means of a glider or other unpowered aircraft. 

  • To rise, especially rapidly or unusually high. 

  • To mount upward on wings, or as on wings, especially by gliding while employing rising air currents. 

  • To rise in thought, spirits, or imagination; to be exalted in mood. 

  • To fly high with little effort, like a bird. 

noun
  • The act of soaring. 

  • An upward flight. 

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