Neptune

"Neptune" in Japanese

ネプチューン

Nepuchūn

(eighth planet of the solar system)

ネプチューン

nepuchūn

(Roman god of the ocean)

ネプトゥヌス

neputunusu

(Roman god of the ocean)

ネプトゥーン

Neputūn

(eighth planet of the solar system)

海王星

Kaiōsei

(eighth planet of the solar system)

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