mùa đông

winter

Typed without accents: mua dong

Meaning

winter
noun

Saigon has no winter, only a dry and a rainy season; Hà Nội has a cold one.
- Mùa đông ở Hà Nội lạnh lắm.
  Winter in Hà Nội is very cold.
- Bạn có thích mùa đông không?
  Do you like winter?