Simplified:

On the HSK 2 vocabulary list, at CEFR level A2.

dāng ㄉㄤ

    • to be
    • to act as
    • manage
    • withstand
    • when
    • during
    • ought
    • should
    • match equally
    • equal
    • same
    • obstruct
    • just at (a time or place)
    • on the spot
    • right
    • just at

dàng ㄉㄤˋ

    • at or in the very same...
    • suitable
    • adequate
    • fitting
    • proper
    • to replace
    • to regard as
    • to think
    • to pawn
    • to fail (a student)

      coll.

Where 當 is used

Sources