vault of heaven vault mount • vault rib · · · Info · Definitions · Synonyms · Characters · · vault of heaven · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) the apparent surface of the imaginary sphere on which celestial bodies appear to be projected. Synonyms: celestial sphere, sphere, empyrean, firmament, heavens, vault of heaven, welkin. · · Noun Definition 1 Synonyms · · · celestial sphere · · Synonym 1 sphere · · Synonym 2 empyrean · · Synonym 3 firmament · · Synonym 4 heavens · · Synonym 5 welkin · · Synonym 6 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 f latin small letter f U+0066 h latin small letter h U+0068 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 u latin small letter u U+0075 v latin small letter v U+0076