Definition of muster
(Entry 1 of 2)
1
: a representative specimen (see specimen sense 1) : sample
musters of goods for sale
2a
: an act of assembling
specifically
: formal military inspection
Call out the troops to stand muster.
b
: critical examination
slipshod work that would never pass muster
c
: an assembled group : collection
a muster of biographical facts — Time
d
: inventory
were sent … to take the musters of this expedition— G. R. Elton
muster
verbDefinition of muster (Entry 2 of 2)
1a
: to cause to gather : convene
b
: to enroll formally
—usually used with in or into was mustered into the army
c
: to call the roll of
3
: to amount to : comprise
: to come together : congregate
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Merriam-Webster unabridged
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Time Traveler for muster
The first known use of muster was in the 14th century
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