buzz vs mouth

buzz

verb
  • To utter a murmuring sound; to speak with a low, humming voice. 

  • To fly while making such a sound. 

  • To show a high level of activity and haste, energization or excitement, to be busy as a bee in one’s actions but perhaps mentally charged. 

  • Of a group of people, to talk about some interesting topic excitedly. 

  • To whisper; to communicate, as tales, in an undertone; to spread, as a report, by whispers or secretly. 

  • To make a low, continuous, humming or sibilant sound, like that made by bees with their wings. 

  • To fly at high speed and at a very low altitude over a specified area, as to make a surprise pass. 

  • To talk to incessantly or confidentially in a low humming voice. 

  • To cut the hair in a close-cropped military style, or buzzcut. 

  • To communicate with (a person) by means of a buzzer. 

noun
  • Major topic of conversation; widespread rumor; information spread behind the scenes. 

  • Synonym of fizz-buzz (“counting game”) 

  • The audible friction of voiced consonants. 

  • A whisper. 

  • A rush or feeling of energy or excitement; a feeling of slight intoxication. 

  • A continuous humming noise, as of bees; a confused murmur, as of general conversation in low tones. 

  • A telephone call or e-mail. 

mouth

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

  • 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 carry in the mouth. 

  • 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 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 buzz and mouth occurred in a corpus of books? (source: Google Ngram Viewer )