discourse vs tongue

discourse

noun
  • Expression in words, either speech or writing. 

  • A formal lengthy exposition of some subject, either spoken or written. 

  • An institutionalized way of thinking, a social boundary defining what can be said about a specific topic (after Michel Foucault). 

  • Any rational expression, reason. 

verb
  • To exercise reason; to employ the mind in judging and inferring; to reason. 

  • To engage in discussion or conversation; to converse. 

  • To write or speak formally and at length. 

tongue

noun
  • The power of articulate utterance; speech generally. 

  • This organ, as taken from animals used for food (especially cows). 

  • Manner of speaking, often habitually. 

  • A language. 

  • Any large or long physical protrusion on an automotive or machine part or any other part that fits into a long groove on another part. 

  • A reed. 

  • A small sole (type of fish). 

  • Any similar organ, such as the lingual ribbon, or odontophore, of a mollusk; the proboscis of a moth or butterfly; or the lingua of an insect. 

  • Glossolalia. 

  • In a shoe, the flap of material that goes between the laces and the foot (so called because it resembles a tongue in the mouth). 

  • An individual point of flame from a fire. 

  • A long, narrow strip of land, projecting from the mainland into a sea or lake. 

  • A division of formation; A layer or member of a formation that pinches out in one direction. 

  • The flexible muscular organ in the mouth that is used to move food around, for tasting and that is moved into various positions to modify the flow of air from the lungs in order to produce different sounds in speech. 

  • The pole of a vehicle; especially, the pole of an ox cart, to the end of which the oxen are yoked. 

  • A short piece of rope spliced into the upper part of standing backstays, etc.; also, the upper main piece of a mast composed of several pieces. 

  • A projection, or slender appendage or fixture. 

  • A person speaking in a specified manner (most often plural). 

  • The clapper of a bell. 

verb
  • On a wind instrument, to articulate a note by starting the air with a tap of the tongue, as though by speaking a 'd' or 't' sound (alveolar plosive). 

  • To join by means of a tongue and groove. 

  • To protrude in relatively long, narrow sections. 

  • To manipulate with the tongue, as in kissing or oral sex. 

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