Definition

To form an angle with a line or to be opposite to something, often used in geometry. It can also mean to support or surround something, like how leaves can support flowers.

Example

In a triangle, each side subtends an angle at the opposite vertex.

Tense Forms

Conversation

Did you know that in geometry, the sides of a triangle subtend the angles opposite to them?

Really? I never thought about it that way.

Yeah, it’s interesting how shapes can define angles like that.

I guess it makes sense, especially when you think about how they all connect.

Synonyms & Antonyms

Root Explanation

Subtend → It is formed from "sub-" (meaning under) and "tendere" (meaning to stretch). The word describes something that stretches under or supports another object, often used in geometry to refer to a line that extends beneath an angle.

Memory Tip

Think of something that 'stretches under' ('sub-') another object — that's why subtend means to support or extend beneath.

Visually Confused Words