grapevine vs whisper

grapevine

noun
  • A rumor. 

  • A leglock. 

  • The plant, a vine of genus Vitis, on which grapes grow. 

  • A move in which the feet are alternately placed in front of each other, while both remaining on the ice or ground, incorporating half-turns. 

  • An informal person-to-person means of circulating information or gossip. 

verb
  • To restrain in a leglock. 

whisper

noun
  • A rumor. 

  • A private message to an individual in a chat room. 

  • A low rustling sound, like that of the wind in leaves. 

  • A faint trace or hint (of something). 

  • The act of speaking in a quiet voice, especially, without vibration of the vocal cords. 

verb
  • To speak softly, or under the breath, so as to be heard only by one near at hand; to utter words without sonant breath; to talk without that vibration in the larynx which gives sonorous, or vocal, sound. 

  • To speak with suspicion or timorous caution; to converse in whispers, as in secret plotting. 

  • To make a low, sibilant sound. 

  • To mention privately and confidentially, or in a whisper. 

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