Captivity refers to being held against one's will, often in a confined space or situation. Synonyms for "hold in captivity" include detain, imprison, confine, incarcerate, trap, and cage. These words share a common theme of restriction and imprisonment, which can be used to describe situations such as imprisonment by a government or a hostage situation. Additionally, these words can also be used metaphorically to describe the feeling of being trapped or confined in a certain situation or relationship. By using synonyms for "hold in captivity," we can add variety and depth to our descriptions and narratives.