Definition of romaji in English:

romaji

noun

  • [mass noun] A system of romanized spelling used to transliterate Japanese.

    • ‘The last alphabet the Japanese use is this one, the roman alphabet, called romaji in Japan and not really used very much, except in train stations which is very useful if you are going somewhere new.’
    • ‘Thus, the systematic combination of kanji and kana, and to a limited extent, of romaji in the Japanese orthography, provides rich sources for research and pedagogy.’
    • ‘I've heard all the standard arguments about how romaji themselves are fashionable here in Japan, it doesn't necessarily matter what they say.’

Origin

Early 20th century: from Japanese, from rōma Roman + ji letter(s).

Pronunciation:

romaji

/ˈrəʊmədʒi/