cusp
Edge of change
A cusp is a pointed end where two curves meet—the cusps of a crescent moon, the cusps of teeth.
In astrology, a cusp is the boundary between zodiac signs.
The most common use is figurative: to be on the cusp of something is to be at the point just before it begins or changes: on the cusp of adulthood, on the cusp of a breakthrough.
Border or cusp
- brinkCritical boundary point
- edgeBoundary or sharpness
- precipiceSteep rock face
- watershedDrainage area boundary
crossroads · juncture · boundary · transition · breakthrough · eve · dawn · onset
Exact location or meaning
- vertexPoint where edges converge
- apexUppermost point or culmination
- nodeConnection point in networks
- tipEnd or gratuity
peak · projection · prominence · horn · spike · angle · convergence
Calcified jaw structure
- molarRear crushing tooth
- premolarTooth between canine and molar
- canineOf or like dogs
- incisorCutting tooth in front
crown · enamel · dentin · occlusal · pointed · fang · eyetooth
Pointed arch form
- trefoilThree-lobed decorative motif
- quatrefoilFour-lobed ornamental pattern
- traceryDecorative branching stonework
- lancetSmall surgical knife
verge
Border or cusp
watershed · crossroads · juncture · boundary · transition · breakthrough · eve · dawn · onset · emergence
point
Exact location or meaning
tip · peak · projection · prominence · horn · spike · angle · convergence
tooth
Calcified jaw structure
incisor · crown · enamel · dentin · occlusal · pointed · fang · eyetooth
ogive
Pointed arch form
- trefoilThree-lobed decorative motif
- quatrefoilFour-lobed ornamental pattern
- traceryDecorative branching stonework
zodiac
Celestial belt of signs
natal · transits · aspects · conjunction · planetary
- astrologyastrology, zodiac, horoscope, horoscopes, birth chart
- pointed thingsspike, needle point, knife point, spear point, arrow
- teethteeth, incisors, incisor, canine, canines
- zodiacAries, Taurus, Gemini, Cancer, Leo
- pointspoint, points, peak, peaks, tip
- architectural ornamentacanthus, arabesque, arabesques, architrave, baluster
cuspcurve
Smooth, angleless line
rounded edge · arc · flat surface · smooth · concavity
- on the cuspAt a transition point