Combinations

[kom-buh-ney-shuhn]

com·bi·na·tion

[kom-buh-ney-shuhn]
noun
1.
the act of combining or the state of being combined.
2.
a number of things combined: a combination of ideas.
3.
something formed by combining: A chord is a combination of notes.
4.
an alliance of persons or parties: a combination in restraint of trade.
5.
the set or series of numbers or letters used in setting the mechanism of a combination lock.
EXPAND
6.
the parts of the mechanism operated by this.
7.
Often, combinations. a suit of underwear in one piece.
8.
Mathematics.
a.
the arrangement of elements into various groups without regard to their order in the group.
b.
a group thus formed. Compare permutation (def. 1).
COLLAPSE

Origin:
1350–1400; Middle English combinacyoun (< Middle French ) < Late Latin combīnātiōn- (stem of combīnātiō), equivalent to combīnāt(us) combined (see combine, -ate1) + -iōn- -ion

com·bi·na·tion·al, adjective
in·ter·com·bi·na·tion, noun
non·com·bi·na·tion, noun
pre·com·bi·na·tion, noun
su·per·com·bi·na·tion, noun
EXPAND
un·com·bi·na·tion·al, adjective
COLLAPSE


1. association, conjunction, union, coalescence, blending. 2. mixture, amalgamation, amalgam. 4. association, federation, league, coalition, cartel, combine, monopoly, bloc, cabal, conspiracy.

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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Combinations is always a great word to know.
So is fraction. Does it mean:
number that cannot be exactly expressed as a ratio of two integers
number usually expressed in the form a numerator over a denominator
Collins
World English Dictionary
combinations (ˌkɒmbɪˈneɪʃənz)
 
pl n
(Brit) combs, Often shortened to: coms, US and Canadian term: union suit a one-piece woollen undergarment with long sleeves and legs

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