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From Latin cuspis (a point, spear, pointed end); first used in astrology.


  • IPA(key): /kʌsp/
  • (file)
  • Rhymes: -ʌsp


cusp (plural cusps)

  1. a sharp point or pointed end.
  2. (figuratively) an important moment when a decision is made that will determine future events
    • 2012 April 21, Jonathan Jurejko, “Newcastle 3-0 Stoke”, in BBC Sport[1]:
      Newcastle were 11 points adrift of Spurs following their 5-0 mauling at the hands of the north London club in February.
      But a sixth successive Premier League win puts them on the cusp of European football next season as they surged 15 points clear of seventh-placed Everton, who have five games left to play.
  3. (geometry) a point of a curve where the curve is continuous but has no derivative, but such that it has a derivative at every nearby point
  4. (architecture) a point made by the intersection of two curved lines or curved structures. A common motif in Gothic architecture[1]
  5. (astrology) a boundary between zodiacal signs and houses
  6. (dentistry) any of the pointed parts of a canine tooth or molar


  • (sharp point, pointed end): ord

Derived termsEdit

Related termsEdit


The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.


  1. ^ Russell Sturgis, ed. (1902). A Dictionary of Architecture and Building: Biographical, Historical, and Descriptive. 3. Macmillan.