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

—Runners World

synonymously adverb

Examples of synonymous in a Sentence

Recent Examples on the Web

The Great Smoky Mountains are synonymous with waterfalls, verdant valleys, and old-growth forests that produce the range’s signature blue-gray haze. —AFAR Media, 30 Oct. 2025

As synonymous as the three-time Grammy winner is with the holidays, this will be her first time in the city for Christmas. —Rachel Chang, Travel + Leisure, 30 Oct. 2025

The South is rich with small towns and charming cities that are synonymous with outdoor adventures and brilliant fall foliage. —Lydia Mansel, Southern Living, 29 Oct. 2025

Trepanation, now synonymous with trephination, is the first neurosurgical procedure on record, practiced throughout many regions and time periods, according to researchers. —Lauren Liebhaber, Miami Herald, 29 Oct. 2025

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