group
any collection or assemblage of persons or things; cluster; aggregation: a group of protesters; a remarkable group of paintings.
a number of persons or things ranged or considered together as being related in some way.
Also called radical. Chemistry. two or more atoms specifically arranged, as the hydroxyl group, –OH.: Compare free radical.
Linguistics.
(in the classification of related languages within a family) a category of a lower order than a subbranch and of a higher order than a subgroup: the Low German group of West Germanic languages.
any grouping of languages, whether it is made on the basis of geography, genetic relationship, or something else.
Geology. a division of stratified rocks comprising two or more formations.
Military.
Army. a flexible administrative and tactical unit consisting of two or more battalions and a headquarters.
Air Force. an administrative and operational unit subordinate to a wing, usually composed of two or more squadrons.
Music. a section of an orchestra comprising the instruments of the same class.
Art. a number of figures or objects shown in an arrangement together.
Mathematics. an algebraic system that is closed under an associative operation, as multiplication or addition, and in which there is an identity element that, on operating on another element, leaves the second element unchanged, and in which each element has corresponding to it a unique element that, on operating on the first, results in the identity element.
Grammar (chiefly British). a phrase: nominal group; verbal group.
to place or associate together in a group, as with others.
to arrange in or form into a group or groups.
to form a group.
to be part of a group.
Origin of group
1Grammar notes for group
Other words for group
Other words from group
- groupwise, adverb
- su·per·group, noun
- un·grouped, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use group in a sentence
Some 32,800 traffic convictions (including DUIs) are grouped together with more serious crimes.
Inside The Center For Immigration Studies, The Immigration False-Fact Think Tank | Caitlin Dickson | May 15, 2014 | THE DAILY BEASTThe first two and the second two can be reasonably grouped together as “basically support the law” and “basically oppose the law.”
The hats have been grouped according to categories, like pink hats and blue hats, which are displayed in the kitchen.
Anna Piaggi's 'Hat-ology' Exhibition Opens in Milan | Liza Foreman | September 23, 2013 | THE DAILY BEASTSmall donors, of less than $200, are grouped together in un-itemized donations.
They are divided into two classes: “single-shell” and “double-shell,” and grouped into large sections called “tank farms.”
At the Hanford Nuclear Reservation, a Steady Drip of Toxic Trouble | Eric Nusbaum | February 24, 2013 | THE DAILY BEAST
There are five general heads under which the characteristics to be sought may be grouped.
Expressive Voice Culture | Jessie Eldridge SouthwickA small but beautiful river debouches from the lake at its west end, and the town is grouped around this outlet.
Glances at Europe | Horace GreeleyI found there, however, a piece of unmistakable chrysotile, grouped amongst a miscellaneous lot of American minerals.
Asbestos | Robert H. JonesThey were grouped now at the other end of the long, low chamber, by the door leading to the interior of the inn.
St. Martin's Summer | Rafael SabatiniWhile the others stood grouped about that still figure on the floor, Sergeant Burton entered the little office.
Dope | Sax Rohmer
British Dictionary definitions for group
/ (ɡruːp) /
a number of persons or things considered as a collective unit
a number of persons bound together by common social standards, interests, etc
(as modifier): group behaviour
a small band of players or singers, esp of pop music
a number of animals or plants considered as a unit because of common characteristics, habits, etc
grammar another word, esp in systemic grammar, for phrase (def. 1)
an association of companies under a single ownership and control, consisting of a holding company, subsidiary companies, and sometimes associated companies
two or more figures or objects forming a design or unit in a design, in a painting or sculpture
a military formation comprising complementary arms and services, usually for a purpose: a brigade group
an air force organization of higher level than a squadron
Also called: radical chem two or more atoms that are bound together in a molecule and behave as a single unit: a methyl group -CH 3 Compare free radical
a vertical column of elements in the periodic table that all have similar electronic structures, properties, and valencies: Compare period (def. 8)
geology any stratigraphical unit, esp the unit for two or more formations
maths a set that has an associated operation that combines any two members of the set to give another member and that also contains an identity element and an inverse for each element
See blood group
to arrange or place (things, people, etc) in or into a group or (of things, etc) to form into a group
Origin of group
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for group
[ grōōp ]
Two or more atoms that are bound together and act as a unit in a number of chemical compounds, such as a hydroxyl (OH) group.
In the Periodic Table, a vertical column that contains elements having the same number of electrons in the outermost shell of their atoms. Elements in the same group have similar chemical properties. See Periodic Table.
Mathematics A set with an operation whose domain is all ordered pairs of members of the set, such that the operation is binary (operates on two elements) and associative, the set contains the identity element of the operation, and each element of the set has an inverse element for the operation. The positive and negative integers and zero form a set that is a group under the operation of ordinary addition, since zero is the identity element of addition and the negative of each integer is its inverse. Groups are used extensively in quantum physics and chemistry to model phenomena involving symmetry and invariance.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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