The phrase "of service" is often used to indicate that something or someone is helpful, beneficial, or useful. There are several synonyms that can be used in place of this phrase, such as "helpful," "useful," "beneficial," "assistive," "supportive," "aiding," and "handy." When referring to a person who provides aid or assistance, synonyms such as "helper," "assistant," "supporter," "aid," and "cooperative" can be used. Additionally, when referring to something that is intended for use or consumption, synonyms such as "usable," "consumable," "utilitarian," and "practical" can be used. By using these synonyms, individuals can effectively convey the same meaning as "of service" while adding variety and depth to their language.