Romanisation
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Dictionary version

Dictionary Romanisation uses one dictionary at a time.
IPAdic cannot be used for romanisation, because its features are ordered differently.
Even for material in historical kana usage, ALA-LC prescribes modern readings as a rule (§2.3.2). If you need the historical kana transliterated as written, check the output and correct it by hand.

Spelling
Options for the Cabinet Notification
Word division follows ALA-LC §6 whichever spelling you choose. How the two standards differ

Other options

Output