Homonym: MUST (Obligation)
"MUST" is a modal verb used in English to express necessity or obligation. It indicates that something is required or essential, such as in the sentence, "You must wear a seatbelt while driving." This usage emphasizes that following the rule is important for safety.
In addition to obligation, "MUST" can also indicate a strong recommendation or certainty. For example, saying, "You must try this restaurant" suggests that the experience is highly recommended. In logical reasoning, "MUST" can imply that a conclusion is unavoidable based on the given information, such as in the statement, "If it rains, you must bring an umbrella."