白天
bái tiān
In real, traceable use. Part of the curated seed collection; community review is coming.
The daytime: the hours of daylight, as opposed to the evening and night. It works like other time words, before the verb: 白天我上班 'I work during the day'. Its opposite is 晚上 'evening'; 白 means 'white, light'.
Ban ngày, khoảng thời gian trời còn sáng. Dùng như các từ chỉ thời gian khác, đứng trước động từ: 白天我上班 (ban ngày tôi đi làm). Trái nghĩa là 晚上 (buổi tối); 白 nghĩa là “trắng, sáng”.
NounRegister: neutral
Examples
Editorial example (illustrative, not a corpus attestation) — awaiting a native-speaker check
Sources & notes
Hán-Việt bridge batch 064 (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 “白天” mean?
The daytime: the hours of daylight, as opposed to the evening and night. It works like other time words, before the verb: 白天我上班 'I work during the day'. Its opposite is 晚上 'evening'; 白 means 'white, light'. Literally: white day
Is “白天” formal or informal?
白天 is generally neutral.