must

Plural: musts

Noun

• a necessary or essential thing
  • "seat belts are an absolute must"
• grape juice before or during fermentation
• the quality of smelling or tasting old or stale or mouldy
• Something that is mandatory or required.
• The property of being stale or musty.
• Something that exhibits the property of being stale or musty.
• Fruit juice that will ferment or has fermented, usually from grapes.
• Alternative spelling of musth.

Adjective Satellite

• highly recommended
  • "a book that is must reading"

Verb

Verb Forms: musted, musting, musts

• To become moldy, stale, or musty.
• To do as a requirement; indicates that the sentence subject is required as an imperative or directive to execute the sentence predicate, with failure to do so resulting in a failure or negative consequence.
• To do with certainty; indicates that the speaker is certain that the subject will have executed the predicate.
• Used to indicate that something is very likely, probable, or certain to be true.
• To make musty.
• To become musty.

Examples

• Everybody told me I must stop worrying, but I couldn't, because I felt there must be something wrong.
• His old dictionary began to MUST, just like his outdated Scrabble strategies.
• I said it must be pretty late and I really must go.
• If it has rained all day, it must be very wet outside.
• If you're trekking all day, a map is a must.
• The children must be asleep by now.
• The physician said that I must / had to / would have to stop smoking.
• There's the doorbell. It must be Dad.
• This door handle must be rotated fully.
• Where would you have put the keyring? You couldn’t have lost it again! - I must have, because it's nowhere to be found.
• You must arrive in class on time.
• You really must come and see us soon, pal. - We'll see: I can borrow my dad's car, but I must bring it back before midnight.

Synonyms

moldiness, mustiness, imperative, necessity

Antonyms

no-no

Anagrams of must