Definition of group
(Entry 1 of 2)
1
: two or more figures forming a complete unit in a composition
went there as a group
2a
: a number of individuals assembled together or having some unifying relationship
a study group
b
: an assemblage of objects regarded as a unit
one of the food groups
c(1)
: a military unit consisting of a headquarters and attached battalions
(2)
: a unit of the U.S. Air Force higher than a squadron and lower than a wing
3a
: an assemblage of related organisms
—often used to avoid taxonomic connotations when the kind or degree of relationship is not clearly defined
b(1)
: two or more atoms joined together or sometimes a single atom forming part of a molecule
especially
: functional group
a methyl group
(2)
: an assemblage of elements forming one of the vertical columns of the periodic table
c
: a bed or layer of rocks deposited during an era
4
: a mathematical set that is closed under a binary associative operation, contains an identity element, and has an inverse for every element
group
verb
grouped; grouping; groups
Definition of group (Entry 2 of 2)
1
: to combine in a group
grouped English and Dutch as Germanic languages
2
: to assign to a group : classify
The children were grouped by age.
1
: to form a group
The students grouped around the table.
2
: to belong to a group
3
: to make groups of closely spaced hits on a target
the gun grouped beautifully— R. C. Ruark
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Merriam-Webster unabridged
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Time Traveler for group
The first known use of group was in 1668
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