triangular
triangular — adjective
1. having the shape of a triangle, with three straight sides and three corners.
having the shape of a triangle, with three straight sides and three corners.
The garden has a triangular flower bed in one corner.
attributive use: triangular + noun
Xiu cut the sandwich into triangular pieces for the children.
Nora's bedroom window is triangular, letting in light from above.
The park has a large triangular pond where children sail toy boats.
Ilan arranged the chairs in a triangular formation around the campfire.
- three-sided
less common; focuses on the number of sides rather than the overall shape
- wedge-shaped
used when the triangle is long and narrow, like a wedge
文法句型
triangular + noun
be + triangular
常見錯誤
2. involving three people, groups, or things that are connected to each other in so
involving three people, groups, or things that are connected to each other in some way — for example, a business arrangement among three companies, or a romantic situation among three people.
The two companies formed a triangular partnership with a local supplier in Vietnam.
collocation: triangular partnership
The film explores a complex triangular relationship between a painter, a musician, and a writer.
collocation: triangular relationship
Kwame studied the triangular trade routes that connected Europe, Africa, and the Americas.
The three countries signed a triangular agreement to share water from the river.
Élise described the triangular structure of the company, with three equal partners.
- three-way
more informal; common in everyday speech about relationships or agreements
- tripartite
formal; used mainly in law, politics, and business documents
- trilateral
used especially for agreements or discussions involving three countries or large organizations
- bilateral
involving two parties rather than three
- unilateral
involving only one party
文法句型
triangular + abstract noun (relationship, arrangement, trade)
用法筆記
Most common in attributive position before abstract nouns such as relationship, partnership, arrangement, alliance, or trade. Unlike sense 1, this sense is rarely used predicatively.