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group  (grp)
1. An assemblage of persons or objects gathered or located together; an aggregation: a group of dinner guests; a group of buildings near the road.
2. Two or more figures that make up a unit or design, as in sculpture.
3. A number of individuals or things considered together because of similarities: a small group of supporters across the country.
4. Linguistics A category of related languages that is less inclusive than a family.
a. A military unit consisting of two or more battalions and a headquarters.
b. A unit of two or more squadrons in the U.S. Air Force, smaller than a wing.
6. A class or collection of related objects or entities, as:
a. Two or more atoms behaving or regarded as behaving as a single chemical unit.
b. A column in the periodic table of the elements.
c. A stratigraphic unit, especially a unit consisting of two or more formations deposited during a single geologic era.
7. Mathematics A set with a binary associative operation such that the operation admits an identity element and each element of the set has an inverse element for the operation.
Of, relating to, constituting, or being a member of a group: a group discussion; a group effort.
v. grouped, group·ing, groups
To place or arrange in a group: grouped the children according to height.
To belong to or form a group: The soldiers began to group on the hillside.

[French groupe, from Italian gruppo, probably of Germanic origin.]
Usage Note: Group as a collective noun can be followed by a singular or plural verb. It takes a singular verb when the persons or things that make up the group are considered collectively: The dance group is ready for rehearsal. Group takes a plural verb when the persons or things that constitute it are considered individually: The group were divided in their sympathies. See Usage Note at collective noun.

group [gruːp]
1. a number of persons or things considered as a collective unit
2. (Sociology)
a.  a number of persons bound together by common social standards, interests, etc.
b.  (as modifier) group behaviour
3. (Music) a small band of players or singers, esp of pop music
4. (Life Sciences & Allied Applications / Biology) a number of animals or plants considered as a unit because of common characteristics, habits, etc.
5. (Linguistics / Grammar) Grammar another word, esp in systemic grammar, for phrase [1]
6. (Economics, Accounting & Finance / Accounting & Book-keeping) an association of companies under a single ownership and control, consisting of a holding company, subsidiary companies, and sometimes associated companies
7. (Fine Arts & Visual Arts / Art Terms) two or more figures or objects forming a design or unit in a design, in a painting or sculpture
8. (Military) a military formation comprising complementary arms and services, usually for a purpose a brigade group
9. (Military) an air force organization of higher level than a squadron
10. (Chemistry) Also called radical Chem two or more atoms that are bound together in a molecule and behave as a single unit a methyl group -CH3 Compare free radical
11. (Chemistry) a vertical column of elements in the periodic table that all have similar electronic structures, properties, and valencies Compare period [8]
12. (Earth Sciences / Geological Science) Geology any stratigraphical unit, esp the unit for two or more formations
13. (Mathematics) 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
14. (Medicine) See blood group
to arrange or place (things, people, etc.) in or into a group or (of things, etc.) to form into a group
[from French groupe, of Germanic origin; compare Italian gruppo; see crop]

group  (grp)
1. Chemistry
a. 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.
b. 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.
2. 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.

group  /grup/  n. 1 a number of people or things placed together: A group of people protested against the new law. 2 two or more singers, musicians, etc.: A singing group performed at the local theater. 3 (in mathematics) a type of set: He is an expert in group theory.
v. [I;T] 1 to put together in a group, assemble: The grocer groups apples by variety: Golden Delicious, McIntosh, etc. 2 to come together, gather: People grouped on the street to watch the parade.

Thesaurus: group n. 1 a crowd | mob. Ant. an individual. 2 an ensemble frml. v. 1 to put together, sort. Ant. to scatter. 2 to crowd together, cluster. Ant. to disperse. group

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