tri‧an‧gle /ˈtraɪæŋɡəl/ noun [countable]
[Date: 1300-1400; Language: Latin; Origin: triangulum, from tri- ( ⇒ tri-) + angulus 'angle']

1. a flat shape with three straight sides and three angles

2. something that is shaped like a triangle:
a triangle of land

3. a musical instrument made of metal bent into the shape of a triangle. You hit it with a metal stick to make a ringing sound.

4. American English a flat plastic object with three sides that has one angle of 90° and is used for drawing angles Synonym : set-square British English

[TahlilGaran] Dictionary of Contemporary English ▲

triangle
noun
I. shape
ADJ. equilateral, isosceles, right-angled, scalene
VERB + TRIANGLE construct (technical), draw Use your protractor to construct an equilateral triangle.
form | cut sth into I cut the sandwiches into triangles.
PHRASES the apex of a triangle

[TahlilGaran] Collocations Dictionary ▲

triangle
II. musical instrument
 ⇒ Special page at MUSIC

[TahlilGaran] Collocations Dictionary ▲

square a shape with four straight sides that are equal in length and four angles of 90 degrees
circle a round shape that is like an O
semicircle half a circle
triangle a shape with three straight sides and three angles
rectangle a shape with four straight sides and four angles of 90 degrees
oval a shape like a circle, but that is longer than it is wide
cylinder an object in the shape of a tube
cube a solid object with six equal square sides
pyramid a shape with a square base and four triangular sides that meet in a point at the top
sphere a shape like a ball
circular/round shaped like a circle:
a circular table
semicircular shaped like a semicircle:
a semicircular arch above the door
triangular shaped like a triangle:
sails divided into triangular sections
rectangular shaped like a rectangle:
a simple rectangular building
cylindrical shaped like a cylinder:
The statue is on top of a tall cylindrical column.
spherical shaped like a ball:
The planet Saturn is not completely spherical.

[TahlilGaran] English Thesaurus ▲