trên / dưới / trong / ngoài

Above / Below / Inside / Outside

Level 1

These four words tell you where something is located: trên (on/above), dưới (under/below), trong (inside), and ngoài (outside).

How It Works

To describe where something is, use this basic structure:

Subject + ở + [trên/dưới/trong/ngoài/trước/sau/giữa/cạnh/gần/xa] + Noun

  • trên covers both "on" (touching a surface) and "above" (higher elevation).
  • dưới means "under", "below", or "beneath".
  • trong means "in" or "inside". It is used for enclosed spaces and abstract concepts.
  • ngoài means "out" or "outside".
  • trước means "in front of" (spatial) or "before" (time). Note that the ở + [word] structure only applies to the spatial meaning; do not use ở for time.
  • sau means "behind" (spatial) or "after" (time). Like trước, only use ở for physical locations.
  • giữa means "between" or "in the middle of". To say "between A and B", use the structure ở giữa A và B.
  • cạnh or bên cạnh means "next to" or "beside".
  • gần means "near" or "close to".
  • xa means "far" or "far from".

To make a complete sentence like "The book is on the table", the standard structure uses the location verb ở: Cuốn sách ở trên bàn. Use ở for location; do not use là. In formal contexts, news, or signs, you may also see tại used instead of ở as a formal equivalent (e.g., tại Hà Nội). However, in casual spoken Vietnamese, native speakers frequently drop ở, making Sách trên bàn a perfectly acceptable complete sentence in context. Native speakers also frequently insert a classifier before the noun to make it sound more concrete (e.g., ở trên cái bàn).

These spatial words are frequently paired with bên (side) or phía (direction) to form compound words like bên trong (inside) or phía trên (above). While related, they are not always interchangeable. Adding phía emphasizes the direction or hovering aspect—for example, trên can mean "on" (touching), but phía trên specifically means "above" or "higher up".

Additionally, these words double as directional markers when paired with verbs of motion. While not strictly required, these verbs and directions form extremely common, natural pairings often used together redundantly to emphasize direction: lên often pairs with trên (đi lên trên - go up), xuống with dưới (đi xuống dưới - go down), vào with trong (đi vào trong - go inside), and ra with ngoài (đi ra ngoài - go outside). You will also see them in core geographical idioms, such as static locations trong Nam (in the South) and ngoài Bắc (in the North), as well as their dynamic equivalents that tie the motion rules together: vào Nam (go [into] the South) and ra Bắc (go [out to] the North).

Examples (4)

  1. Cuốn sách ở trên bàn.

    The book is on the table.

    Word by Word: Classifier book at on table.

    Notice how 'ở' is required before 'trên' to indicate the location.

  2. Con mèo nằm ở dưới ghế.

    The cat is lying under the chair.

    Word by Word: Classifier cat lie at under chair.

    'Dưới' specifies the position relative to the chair.

  3. Cô ấy đang ở trong nhà.

    She is currently inside the house.

    Word by Word: Aunt that in-progress at inside house.

    'Trong' is used for enclosed spaces like a house or a room.

  4. Bọn trẻ đang chơi ở ngoài sân.

    The children are playing outside in the yard.

    Word by Word: Group child in-progress play at outside yard.

    'Ngoài' indicates they are outside the house, in the yard area.

Common Mistakes

  • Using 'là' instead of 'ở' to express location.

    Cuốn sách là trên bàn.
    Cuốn sách ở trên bàn.

    English uses the verb 'to be' for both identity and location. In Vietnamese, you must use 'ở' to state where something is located. Do not use 'là', which is strictly for identity.

  • Using 'trong' unnecessarily for countries.

    Tôi sống ở trong Việt Nam.
    Tôi sống ở Việt Nam.

    While 'trong' translates to 'in', it is generally unnatural to use it with country names. Simply use the location verb 'ở' (at/in) directly before the country.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

trên / dưới / trong / ngoàiLevel 1Above / Below / Inside / Outside

Learn This First

To use position words like 'trên' (above), 'dưới' (below), 'trong' (inside), and 'ngoài' (outside), learners need to understand basic Vietnamese word order and how noun phrases are structured, as these words typically follow the verb 'ở' (to be at) or the noun they are describing.

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Words in This Pattern

dướingoài