One interpretation of a gown in a dream is that it represents a sense of elegance and grace. Gowns are often associated with formal occasions and can be a symbol of elegance and grace. Seeing a gown in a dream could indicate that you are feeling elegant and graceful in some aspect of your life, or that you are striving for that feeling.
Another interpretation of a gown in a dream is that it represents a sense of transformation or a new chapter in your life. Gowns are often worn on special occasions such as weddings, proms, graduations, etc. It could be a sign that you are in the process of a significant change or transition in your life and that you are ready to embrace a new chapter.
A gown in a dream could also represent a sense of vulnerability or being exposed. Gowns are often revealing, and they could be representing a feeling of being exposed or vulnerable in your waking life.