在

zài

In real, traceable use. Part of the curated seed collection; community review is coming.

Meaning · English

To be in or at a place; also the preposition 'in, at'. As a verb it needs no 是: 我在家 'I am at home'. As a preposition its phrase goes before the main verb: 在北京工作 'to work in Beijing'. Straight before a verb it marks an action in progress: 我在吃饭 'I am eating'.

Nghĩa · Tiếng Việt

Ở, có mặt tại một nơi; cũng là giới từ “ở, tại”. Làm động từ thì không cần 是: 我在家 (tôi ở nhà). Làm giới từ thì cụm chỉ nơi chốn đứng trước động từ chính, ngược với tiếng Việt: 在北京工作 (làm việc ở Bắc Kinh). Đứng ngay trước động từ, nó cho biết việc đang diễn ra: 我在吃饭 (tôi đang ăn cơm).

VerbRegister: neutral

Examples

你妈妈在家吗?Nǐ māma zài jiā ma?Is your mum at home?

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 ↗ · Vietnamese cognate: Idiomer entry “tại” (tai-4). Definition, literal gloss and example sentence are original; the example has not had a native-speaker check yet.

Equivalents & related

Common questions

What does “在” mean?

To be in or at a place; also the preposition 'in, at'. As a verb it needs no 是: 我在家 'I am at home'. As a preposition its phrase goes before the main verb: 在北京工作 'to work in Beijing'. Straight before a verb it marks an action in progress: 我在吃饭 'I am eating'.

Is “在” formal or informal?

在 is generally neutral.

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