triangle Meaning in the Cambridge English Dictionary
Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

Meaning of “triangle” in the English Dictionary

"triangle" in British English

See all translations

trianglenoun [C]

uk   us   /ˈtraɪ.æŋ.ɡl̩/
B2 a ​flatshape with three ​straightsides: an ​equilateral/isosceles triangle anything that has three ​straightsides: Which ​earrings did you ​buy in the end - the triangles or the ​circles? a ​musicalinstrument consisting of a ​thinmetalbarbent into a triangle ​shape that is ​hit with a ​metalbar to make a ​sound US (UK set square) a ​flatpiece of ​metal or ​plastic in the ​shape of a triangle with one ​angle of 90°, used for ​drawingangles (also frame) a three-sided frame for ​arranging the ​balls at the ​start of a ​game of billiards , pool, etc.
More examples
(Definition of triangle from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"triangle" in American English

See all translations

trianglenoun [C]

 us   /ˈtrɑɪˌæŋ·ɡəl/
mathematics a ​flatshape with three ​straightsides: Her ​earrings were in the ​shape of triangles. music A triangle is also a ​musicalinstrument consisting of a ​thinmetalbar having three ​sides, which makes a high ​sound when ​held up in the ​air and ​hit with a ​metalbar.
(Definition of triangle from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of triangle?
Add Cambridge dictionaries to your browser to your website
Word of the Day

autumnal

typical of autumn

Word of the Day

Introducing a new author and a new weekly blog post!
Introducing a new author and a new weekly blog post!
by Cambridge Dictionaries Online,
August 27, 2015
The English language is constantly changing. You know that. But did you know that at Cambridge Dictionaries Online we keep track of the changes? We continually add new words and new meanings to our online dictionary for learners of English. Some of them are new to English entirely (neologisms), and some

Read More 

parklet noun
parklet noun
August 31, 2015
a public outdoor space that may be associated with a local business but where anyone can sit Pop-up cafes in NY are what’s actually called parklets in many other places around the country.

Read More