firkant

fire (“four”) +‎ kant (“edge”)

firkant c (singular definite firkanten, plural indefinite firkanter)

1. (geometry) A quadrangle. (quadrilateral polygon)
2. (rare) foursome, sex act between four people
   • 2011, Joan Ørting, Vær åben: energi og glæde i parforholdet, Lindhardt og Ringhof →ISBN, page 202

     Vi skal ikke tro, at en trekant eller firkant kan redde vores nye forhold eller et skrantende sexliv.

     We must not believe that a threesome or foursome can save our new relationship or faltering sex life.

   • 2016, Klaus Rifbjerg, Tango eller Syv osmotiske fortællinger, Gyldendal A/S →ISBN

     Man muss handlen!^[sic] Aussage machen. Hauptsätze, sozusagen! Derfor tænkte jeg mig heller ikke så meget om, men gjorde mig til spydspids for indre impulser. Jeg kom farende tilbage med disse bajere og foreslår jer nu en festlig firkant.

     One must act! Make a statement. Main clauses, so to speak! I therefore did not consider the matter at length, either, but made myself speartip of inner impulses. I came rushing back with these beers and now propose to you a festive foursome.

   • 2016, Elle Kennedy (translated by Merete Rostrup), Dømt ude: Off-campus 3, Gyldendal A/S →ISBN

     Vi taler firkant med tre villige kvinder.

     We're talking a foursome with three willing women.

• polygon

• kvadrat, rektangel, trapez, parallelogram

• firkantet

From fire +‎ kant

firkant m (definite singular firkanten, indefinite plural firkanter, definite plural firkantene)

1. (geometry) a quadrilateral (four-sided polygon)

• kvadrat
• rektangel

• “firkant” in The Bokmål Dictionary.

From fire +‎ kant

firkant m (definite singular firkanten, indefinite plural firkantar, definite plural firkantane)

1. (geometry) a quadrilateral (four-sided polygon)

• kvadrat
• rektangel

• “firkant” in The Nynorsk Dictionary.