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Synonyms

rectangle

American  
[rek-tang-guhl] / ˈrɛkˌtæŋ gəl /

noun

  1. a parallelogram having four right angles.

rectangle British  
/ ˈrɛkˌtæŋɡəl /

noun

  1. a parallelogram having four right angles Compare rhombus

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
rectangle Scientific  
/ rĕk′tăng′gəl /

  1. A four-sided plane figure with four right angles.

Etymology

Origin of rectangle

1565–75; < Medieval Latin rēctangulum, Late Latin rēctiangulum right-angled triangle (noun use of neuter of rēctiangulus having a right angle), equivalent to rēcti- recti- + angulum angle 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Yet, anyone born with “19” at the start of their birthyear still remembers how it felt to leave the house without a black rectangle in their hands.

From Los Angeles Times • Feb. 12, 2026

Carrots and papaya plants have already pushed up through a rectangle of dark soil, thanks to a technique based on organic fertilisers made from a mixture of compost and chicken manure.

From Barron's • Nov. 26, 2025

To start, you’ll need to cut a fabric rectangle that’s twice as long as it is wide and make a pouch by stitching the short sides together.

From Salon • Oct. 30, 2025

In “Venice, Palazzo Dario,” each rectangle has a different kind of broken color and a different temperature.

From The Wall Street Journal • Oct. 11, 2025

She left the door open behind her, revealing a rectangle of welcoming light.

From "It All Comes Down to This" by Karen English

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.