must1
modal v.
(past had to or in reported speech must)
- be obliged to; should.
▸expressing insistence.
- expressing an opinion about something that is very likely.
n.
informal something that should not be overlooked or missed.
Etymology
OE mōste, past tense of mōt ‘may’, of Gmc origin.
must2
n.
grape juice before or during fermentation.
Etymology
OE, from L. mustum, neut. (used as n.) of mustus ‘new’.
must3
Etymology
C17: back-form. from musty.
must4
n.
the frenzied state of a rutting male elephant or camel.
Etymology
C19: via Urdu from Pers. mast ‘intoxicated’.