Subpoenaing is a legal process that involves compelling a person to appear in court or to provide evidence. There are several synonyms for this word, which include summoning, demanding, requiring, commanding, and calling upon. Summoning is often used in a less formal context, such as summoning someone to a meeting or gathering. Demanding and requiring are more forceful and suggest a sense of obligation, while commanding implies a higher level of authority. Calling upon is a more formal way of requesting someone's presence or participation in a legal proceeding. Regardless of the specific synonym used, the end result is the same: a person is required to appear in court or provide evidence.