九
jiǔ
In real, traceable use. Part of the curated seed collection; community review is coming.
The number nine, in counting and in figures. 九个人 is 'nine people', 九月 September, 第九 'ninth'. It is a well-liked number, because it sounds exactly like 久 jiǔ 'lasting a long time': a good sign for a marriage or a friendship.
Số chín, dùng khi đếm và khi đọc các con số. 九个人 là chín người, 九月 là tháng chín, 第九 là “thứ chín”. Con số này được ưa thích vì đồng âm với 久 jiǔ (lâu dài), gợi ý nghĩa bền lâu trong tình yêu, hôn nhân, tình bạn.
NumeralRegister: neutral
Examples
Editorial example (illustrative, not a corpus attestation) — awaiting a native-speaker check
Sources & notes
Hán-Việt bridge batch 063 (2026-11-14). Headword, Traditional form and pinyin checked against CC-CEDICT (CC BY-SA 4.0) source ↗ · Hán-Việt reading: Unihan kVietnamese source ↗ · No Vietnamese entry is linked as its twin; the Hán-Việt reading is given character by character. Definition, literal gloss and example sentence are original; the example has not had a native-speaker check yet.
Common questions
What does “九” mean?
The number nine, in counting and in figures. 九个人 is 'nine people', 九月 September, 第九 'ninth'. It is a well-liked number, because it sounds exactly like 久 jiǔ 'lasting a long time': a good sign for a marriage or a friendship.
Is “九” formal or informal?
九 is generally neutral.