synonymous

adjective

syn·​on·​y·​mous sə-ˈnä-nə-məs 

1

: having the character of a synonym

also : alike in meaning or significance

2

: having the same connotations, implications, or reference

To runners, Boston is synonymous with marathon …

—Runner's World

synonymously adverb

Examples of synonymous in a Sentence

Recent Examples on the Web

Softies Marshmallow Reverse Seam Crew Neck Lounge Set At this point, the Softies brand is practically synonymous with Oprah herself. —Annie Blackman, InStyle, 22 Feb. 2026

Of course, luxury is synonymous with Rolls-Royce, the British marque that can make any owner's wildest dreams come true. —Morgan Korn, ABC News, 22 Feb. 2026

Sleek Shine Sleek finishes are typically synonymous with pin-straight hairstyles, but Redway says sleek hair will apply to anything and everything in 2026. —Audrey Noble, Vogue, 20 Feb. 2026

Lululemon is essentially synonymous with athleisure; the brand has helped create and define the category. —Sophie Dodd, Travel + Leisure, 20 Feb. 2026

Word History

First Known Use

1610, in the meaning defined at sense 1

Rhymes for synonymous

• anonymous
• autonomous
• economise
• eponymous

Kids Definition

synonymous

adjective

syn·​on·​y·​mous sə-ˈnän-ə-məs 

1

: alike in meaning

2

: suggesting the same thing

a brand name that is synonymous with quality

synonymously adverb

Etymology

from Latin synonymus "synonymous," from Greek synōnymos, literally, "having the same name," from syn- "together, along with" and onyma, onoma "name" — related to anonymous, symposium, synagogue, synchronous