Word Type

Noun

Proper Noun

The word "triangle" can be used as noun and proper noun.

Word Relationships

Typical Location

architects office band drafting drafting class geometry math math book math class mathematics music class music room music shop orchestra trigonometry

Capable Of

has at most one right angle

Defined As

polygon with three corners or vertices and three sides or edges which line segments

Derived Terms

Bermuda Triangle Brocard triangle Calot's triangle Cape triangle Floyd's triangle Gergonne triangle Goualougo Triangle Harberger triangle Harberger's triangle Kanizsa triangle Karpman drama triangle Koch's triangle Lenné Triangle Lithium Triangle Morley triangle North Atlantic Triangle Pascal's triangle Penrose triangle Polynesian Triangle Pythagorean triangle Reuleaux triangle Scarpa's triangle Sierpinski triangle South Triangle Sunni Triangle Triangle Flat Triangler West Triangle acute triangle acute-angled triangle anal triangle anterior triangle anti-triangle black triangle blue triangle carotid triangle circular triangle color triangle colour triangle combustion triangle cyclic triangle cystohepatic triangle danger triangle danger triangle of the face devil's triangle equilateral triangle eternal triangle femoral triangle fire triangle furry triangle golden triangle hepatobiliary triangle hepatocystic triangle ideal triangle iron triangle isosceles triangle love triangle nasolabial triangle obtuse triangle obtuse-angled triangle pink triangle posterior triangle pubic triangle purple triangle red triangle slug right triangle right-angled triangle scalene triangle set triangle sight triangle spherical triangle star-triangle relation sternocostal triangle superior carotid triangle tangential triangle time triangle triangle choke triangle group triangle inequality triangle of life triangle offense triangle piercing triangle pose triangle spider triangle test triangle wave triangle-free trianglist triangular triangular distribution triangular function triangular prism triangulate triangulation unified rear triangle van Arkel–Ketelaar triangle warning triangle work triangle

Derived From

angle tri

Distinct From

square

Has Part

3 sides three sides three vertices

Context

canada cue sports geometry historical music systemics us

Broader Terms (Hypernyms)

drafting instrument form percussion instrument percussive instrument polygon polygonal shape shape

Narrower Terms (Hyponyms)

acute triangle acute-angled triangle equilateral triangle isosceles triangle obtuse triangle obtuse-angled triangle right triangle right-angled triangle scalene triangle

Type Of (IsA)

closed shape with three sides convex region cyclic polygon drafting instrument drafting tool figure geometric figure geometric figure with three sides geometric shape instrument percussion instrument polygon shape small percussion instrument tool

Receives Action

drawn from three points

Related Terms

angles attributive corners figure geometric geometric shape geometrical geometrical figure geometry geometry shape love triangle percussion instrument polygon resonant set square shape sided sides three three angles three corners three shape three sided three sides threeside

Synonym Network

love triangle threeside triangulum

Used For

add percussion sounds to music calculate position on plan creating patter do geometry draw line at angle draw straight line drawing angles with figuring out problem geometry making a'ting noise in orchestral perscussion making drawings measure angles musical instrument play music playing in orchestra playing song produce music producing simple metal sound trigonometry understanding math

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.