Must — Defs

01 v. i. [or] auxiliary To be obliged; to be necessitated; -- expressing either physical or moral necessity; as, a man must eat for nourishment; we must submit to …

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.

02 n. The expressed juice of the grape, or other fruit, before fermentation.

1.
The expressed juice of the grape, or other fruit, before fermentation.
“No fermenting must fills . . . the deep vats.” — Longfellow.
2.
Mustiness.

03 v. t. & i. To make musty; to become musty.

1.
To make musty; to become musty.

04 a. Being in a condition of dangerous frenzy, usually connected with sexual excitement; -- said of adult male elephants which become so at irre…

1.
Being in a condition of dangerous frenzy, usually connected with sexual excitement; -- said of adult male elephants which become so at irregular intervals, typicaly due to increased testosterone levels.(Zool.)