To dream of a belt represents support or help. How a person or situation is being secured, insured, or held up. It may reflect how you or someone else is helping or “carrying” another person. The color of the belt can indicate intentions.
Example: A man dreamed of seeing a woman he liked wearing a pink belt. In real life he was only helping this woman because he sexually lusted after her. The pink belt reflected the his lustful intentions that drove him to help or support the woman.