1. To be obliged; to be necessitated; - - expressing either physical or moral necessity; as, a man must eat for nourishment; we must submit to the laws.
2. To be morally required; to be necessary or essential to a certain quality, character, end, or result; as, he must reconsider the matter; he must have been insane.
"Likewise must the deacons be grave." -- 1 Tim. iii. 8.
"Morover, he [a bishop] must have a good report of them which are without." -- 1 Tim. iii. 7.
The principal verb, if easily supplied by the mind, was formerly often omitted when must was used; as, I must away. "I must to Coventry." Shak.