Ancillary powers refer to the subsidiary or additional powers that support the major authority or main body. These powers are usually granted to an organization or individual to help them carry out their duties effectively. Synonyms for ancillary powers include secondary powers, supplementary powers, supporting powers, auxiliary powers, backup powers, and complementary powers. All these words convey the same meaning as ancillary powers and can be used interchangeably depending on the context. The use of these synonyms helps to add depth and variety to written communication, making it more engaging and effective in conveying a message.