thứ hai
[tʰɨ˧˦ haːj˧˧]
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
(adjective) second
Where it’s used:
Used
Toàn quốc & hải ngoại · Vietnam-wide & diaspora
Examples
cuốn sách thứ hai có màu đỏthe second book is red
Thứ hai tuần sau là ngày mấy?What date is next Monday?
Wiktionary example (CC BY-SA 4.0)
Sources & notes
Imported from Wiktionary (CC BY-SA 4.0, retrieved 2026-07-29); community review pending. source ↗
Sense 2
Meaning · English
(noun) Monday
Examples
Thứ hai là ngày đầu tuần, bé hứa cố gắng chăm ngoan.Monday's the first day of the week, and kiddo promises to be a nice kid.
Wiktionary example (CC BY-SA 4.0)
Common questions
What does “thứ hai” mean?
(adjective) second
Is “thứ hai” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.