lớp đệ thất
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
sixth grade (pre-1975 / overseas Vietnamese usage; today usually “lớp sáu”)
Era: pre-1975 / diaspora
Where it’s used:
More common
Người Việt hải ngoại · Vietnamese diaspora
Used
miền Nam trước 1975 · Pre-1975 South Vietnam
• The đệ (ordinal) grade-naming system ran đệ thất → đệ nhất.
Sources & notes
From Idiomer’s curated “Trước 1975 ↔ Ngày nay” table (original compilation, 2026); old sense attested in pre-1975 South Vietnamese usage and diaspora media. The đệ (ordinal) grade-naming system ran đệ thất → đệ nhất.
Equivalents & related
Common questions
What does “lớp đệ thất” mean?
sixth grade (pre-1975 / overseas Vietnamese usage; today usually “lớp sáu”)
Is “lớp đệ thất” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.
What is the closest equivalent?
“lớp sáu” (Tiếng Việt) — same word, different era.