Is “Must” a Scrabble word?
Yes
MUST
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Must
noun
1.Something that is mandatory or required.
“If you'll be out all day, a map is a must.”
Synonyms: imperative
verb
1.(modal auxiliary, defective) To do with certainty; indicates that the speaker is certain that the subject will have executed the predicate.
“If it has rained all day, it must be very wet outside.”
2.(modal auxiliary, defective) 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 negative consequence.
“This door handle must be rotated fully.”
3.(modal auxiliary, defective) said about something that is very likely, probable, or certain to be true
“The children must be asleep by now.”