What context can I use each word in?
Learn when and how to use these words with these examples!
triangle
Example
The triangle has three sides and three angles. [triangle: noun]
Example
She played the triangle in the school band. [triangle: noun]
Example
The love triangle between the three characters made for an interesting plot. [triangle: noun]
trilateral
Example
The trilateral trade agreement between the US, Canada, and Mexico was signed in 1994. [trilateral: adjective]
Example
The pyramid is a trilateral structure with three triangular faces. [trilateral: adjective]
Example
The trilateral talks between the three nations were held to discuss the peace process. [trilateral: noun]
Good things to know
Which word is more common?
Triangle is more commonly used than trilateral in everyday language.
What’s the difference in the tone of formality between triangle and trilateral?
Trilateral is more formal than triangle and is primarily used in political or diplomatic contexts.