Firmament

"Firmament" in Japanese

大空

ōzora

(vault of the heavens — see also heavens, sky)

天空

tenkū

(vault of the heavens — see also heavens, sky)

穹蒼

kyūsō

(vault of the heavens — see also heavens, sky)

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.