Kumi logo
    Kumi

    Learn Japanese. Where understanding folds into fluency.

    Dictionary

    KanjiKanji vocabularyKana vocabularyKanaRadicalsGrammarJLPT N5

    Learn

    GuidesStart where you areWhat is KMT?RoadmapFAQ

    Connect

    EmailDiscordInstagramThreadsTikTokYouTubeLinkedInBlueskyX

    Newsletter

    Start learning free →

    Free forever tier. No card required.

    © 2026 Kumiai Inc. All rights reserved.

    AboutFAQContactStatusPrivacyTermsAttributions
    Dictionary
    1. Dictionary
    2. Kana Vocab
    3. Ｂ－ＩＳＤＮ

    Ｂ－ＩＳＤＮ

    Ｂ－ＩＳＤＮ

    broadband ISDN

    NTNounTechnologyKana Vocab

    ビー・アイ・エス・ディー・エヌビーアイエスディーエヌ

    Noun

    1.
    broadband ISDN, B-ISDN
    telecommunications
    Kumi logo

    Track your mastery

    Kumi's KMT system tracks your mastery across kanji, vocabulary, grammar, and reading. Create a free account to use it on 220,000+ concepts.

    Explore more

    Kana Vocab dictionary›Browse all entries›