Definition

In a way that forms a right angle with something else; at an angle of 90 degrees.

Example

The two lines intersect perpendicularly, creating a perfect corner.

Conversation

Did you notice how the new shelves are installed?

Yeah, they look great! Are they placed perpendicularly to the wall?

Exactly! It makes the room feel more spacious.

I agree, and it also helps with organizing the books better.

Synonyms & Antonyms

Root Explanation

Perpendicularly → It is formed from "perpendiculum" (from Latin, meaning a plumb line or vertical line) and the suffix "-ly" (meaning in a manner of). The word "perpendicularly" means in a manner that is vertical or at right angles to a given line or surface.

Memory Tip

Think of a plumb line ('perpendiculum') that helps you remember that 'perpendicularly' describes something that is vertical or at right angles.

Visually Confused Words