Synonyms of firmament

firmament

noun

ˈfər-mə-mənt 

1

as in sky

the expanse of air surrounding the earth

the stars in the firmament twinkled ever so brightly

Synonyms & Similar Words

• sky
• welkin
• heaven(s)
• blue
• high
• midair
• horizon
• skyline

2

as in realm

a region of activity, knowledge, or influence

a major figure in the classical music firmament

Synonyms & Similar Words

• realm
• area
• domain
• element
• department
• sphere
• field
• kingdom
• walk
• circle
• terrain
• province
• arena
• specialty
• territory
• front
• business
• discipline
• game
• bailiwick
• precinct
• fief
• fiefdom
• barony
• demesne
• study
• subject
• line
• confine
• frontier
• profession
• scope
• turf
• pursuit
• vocation
• racket
• compass
• ambit
• amplitude
• width
• sweep
• occupation
• extent
• breadth
• reach
• subfield
• ken
• subspecialty
• dimension(s)

Example Sentences

Recent Examples of firmament

Meanwhile, Serrano and Sarah Benady, CEO of Jacquemus, are new additions to the federation’s board of directors, which includes a wider swath of the Paris fashion firmament. — Miles Socha, Footwear News, 17 July 2026

It’s been more than 46 years since the ’80s began, and much of the musical firmament of that time – from boomboxes to an MTV that played music videos from Duran Duran, the Go-Go’s and the Cars – is gone. — Peter Larsen, Daily News, 14 July 2026

The stars in the firmament may be Yosemite and Yellowstone, but there are countless others. — Nicholas D. Kristof, Mercury News, 3 July 2026

With a new album out this summer—her first in a decade—Madonna’s reemergence on the pop scene has left many of us contemplating her ultimate place in its firmament. — Alex Frank, Vogue, 2 July 2026