firmament

1. 1.

   the apparent surface of the imaginary sphere on which celestial bodies appear to be projected

   Synonymscelestial spheresphereempyreanheavensvault of heavenwelkin

   Broadersurface

   Partsapexcelestial pointnadirzenithzodiac

Other forms of firmament

plural

firmaments·

Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.

Questions about firmament

What does firmament mean?

firmament means "the apparent surface of the imaginary sphere on which celestial bodies appear to be projected".

How many syllables are in firmament?

firmament has 3 syllables: fir-ma-ment. The stress falls on "fir".

What is another word for firmament?

Close synonyms include celestial sphere, sphere, empyrean, heavens, vault of heaven. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is firmament a common word?

firmament is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.