bí số
Learn more
After looking up a meaning, choose a textbook or practice activity to keep learning Vietnamese.
Learn letters and pronunciation from the beginning
Open the 10days lesson listAn introductory textbook over ten days. Choose a lesson to read and listen to.
Learn conversation through a story
Read about “Tết, the Third Time”A textbook that teaches conversation through a family story. It is being prepared; see its content and release status.
Practise words and sounds in short activities
Choose from the practice listChoose an activity for vocabulary, tones, listening and other skills.
Meaning
1 senses
▸
A secret name or number used to identify an individual or an activity in order to ensure absolute confidentiality and security.
vi Bí số này được dùng để bảo mật danh tính.
en This code name is used to ensure identity security.