dai2 saam1底衫
Jyutpingdai2 saam1
Yaledái sāam
Definition
Undershirt, vest, or undergarment designed to be worn beneath outer clothing.
colloquialclothing
How it's used
Refers specifically to the garment worn directly against the skin to absorb sweat or provide warmth. It is distinct from a tank top or sleeveless shirt worn as an outer layer, which would be called 背心. People often use it to describe thermal layers in winter or cotton shirts under a dress shirt.
Measure word
gin2件gínExamples
Are you wearing an undershirt today?
This undershirt is very thin and feels comfortable to wear.
Related words
Common mistake
Avoid using it to refer to a sleeveless top worn as a fashion item, as that is strictly a 背心. Using 底衫 for a visible outer garment will sound like you are wearing your underwear in public.
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- Aspect markersCantonese has no tenses, but it does have aspect markers. Learn how zo2, gwo3, gan2, and hai2 dou6 show completion, experience, and ongoing action.
- In 30 secondsThe whole language at a glance. No tenses, no plurals, six tones, sentence particles. Read this before you dive into any specific topic.
- ParticlesSentence particles add tone, emotion, and nuance. Learn the most common particles in Cantonese and how to use them.



