The Vietnamese word "vành" is a noun that translates to "hoop," "rim," "brim," "coil," "ring," or "disk" in English. It refers to a circular or curved shape that often serves as a boundary or support for something.
In summary, "vành" is a versatile word that relates to circular shapes and boundaries. It can describe physical objects like rims or hoops and can also be extended to more abstract uses like boundaries in geography.