beak vs mouth

beak

verb
  • Seize with the beak. 

  • To play truant. 

  • Strike with the beak. 

noun
  • Any of various nymphalid butterflies of the genus Libythea, notable for the beak-like elongation on their heads. 

  • A schoolmaster (originally, at Eton). 

  • The human nose, especially one that is large and pointed. 

  • That part of a ship, before the forecastle, which is fastened to the stem, and supported by the main knee. 

  • A rigid structure projecting from the front of a bird's face, used for pecking, grooming, foraging, carrying items, eating food, etc. 

  • A similar structure forming the jaws of an octopus, turtle, etc. 

  • A justice of the peace; a magistrate. 

  • The upper or projecting part of the shell, near the hinge of a bivalve. 

  • The prolongation of certain univalve shells containing the canal. 

  • The long projecting sucking mouth of some insects and other invertebrates, as in the Hemiptera. 

  • A toe clip. 

  • A beam, shod or armed at the end with a metal head or point, and projecting from the prow of an ancient galley, used as a ram to pierce the vessel of an enemy; a beakhead. 

  • cocaine. 

  • Any process somewhat like the beak of a bird, terminating the fruit or other parts of a plant. 

  • Anything projecting or ending in a point like a beak, such as a promontory of land. 

  • A continuous slight projection ending in an arris or narrow fillet; that part of a drip from which the water is thrown off. 

mouth

verb
  • To carry in the mouth. 

  • To form or cleanse with the mouth; to lick, as a bear licks her cub. 

  • To take into the mouth; to seize or grind with the mouth or teeth; to chew; to devour. 

  • To form a mouth or opening in. 

  • To pick up or handle with the lips or mouth, but not chew or swallow. 

  • The prompter mouthed the words to the actor, who had forgotten them. 

  • To form with the mouth. 

  • To utter with a voice that is overly loud or swelling. 

  • To speak; to utter. 

  • To examine the teeth of. 

  • To make the actions of speech, without producing sound. 

  • To exit at a mouth (such as a river mouth) 

noun
  • The end of a river out of which water flows into a sea or other large body of water. 

  • The opening of a creature through which food is ingested. 

  • The crosspiece of a bridle bit, which enters the mouth of an animal. 

  • An outlet, aperture or orifice. 

  • A loud or overly talkative person. 

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