[mʌst], (Verb)

Definitions:
- be obliged to; should (expressing necessity)
(e.g: you must show your ID card)

- expressing an opinion about something that is logically very likely
(e.g: there must be something wrong)


Phrases:

Origin:
Old English mōste, past tense of mōt ‘may’, of Germanic origin; related to Dutch moeten and German müssen

[mʌst], (Noun)

Definitions:
- something that should not be overlooked or missed
(e.g: this video is a must for everyone)


Phrases:

Origin:
Old English mōste, past tense of mōt ‘may’, of Germanic origin; related to Dutch moeten and German müssen

[mʌst], (Noun)

Definitions:
- grape juice before or during fermentation


Phrases:

Origin:
Old English must, from Latin mustum, neuter (used as a noun) of mustus ‘new’

[mʌst], (Noun)

Definitions:
- mustiness, dampness, or mould
(e.g: a pervasive smell of must)


Phrases:

Origin:
early 17th century: back-formation from musty

[mʌst], (Noun)

Definitions:
- a condition of heightened aggression and unpredictable behaviour occurring annually in certain male animals, especially elephants and camels, in association with a surge in testosterone level, equivalent to the rutting season of deer and some other mammals
(e.g: a big old bull elephant in must)


Phrases:

Origin:
late 19th century: via Urdu from Persian mast ‘intoxicated’

[mʌst], (Adjective)

Definitions:
- (of a male elephant or camel) in a condition marked by heightened aggression and unpredictable behaviour that usually occurs annually in association with a surge in testosterone level
(e.g: two musth males competing for a female)


Phrases:

Origin:
late 19th century: via Urdu from Persian mast ‘intoxicated’