against
Americanpreposition
-
in opposition to; contrary to; adverse or hostile to: against reason.
twenty votes against ten;
against reason.
-
in resistance to or defense from.
protection against burglars.
-
in an opposite direction to.
to ride against the wind.
-
into contact or collision with; toward; upon.
The rain beat against the window.
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in contact with.
to lean against the wall.
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in preparation for; in provision for.
money saved against a rainy day.
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having as background.
a design of flowers against a dark wall.
-
in exchange for; as a balance to or debit or charge on.
He asked for an advance against his salary.
-
in competition with.
a racehorse running against his own record time.
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in comparison or contrast with.
a matter of reason as against emotion.
-
The car is against the building.
conjunction
idioms
preposition
-
opposed to; in conflict or disagreement with
they fought against the legislation
-
standing or leaning beside or in front of
a ladder against the wall
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coming in contact with
the branches of a tree brushed against the bus
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in contrast to
silhouettes are outlines against a light background
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having an adverse or unfavourable effect on
the economic system works against small independent companies
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as a protection from or means of defence from the adverse effects of
a safeguard against contaminated water
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in exchange for or in return for
-
rare in preparation for
he gave them warm clothing against their journey through the night
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as opposed to or as compared with
he had two shots at him this time as against only one last time
Etymology
Origin of against
First recorded in 1125–75; Middle English agens, ageynes, equivalent to ageyn again + -es -s 1; for -t whilst, amongst
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
At times, his position appears to have hardened against Russia.
From BBC
Eastern Ukraine used to feel like a throwback to the Western Front in World War One, with trenches and dugouts reinforced against artillery and snipers.
From BBC
Freshman Ivan Rivera started on the mound for Birmingahm against Ventura.
From Los Angeles Times
Markets are still bracing for currency intervention as the yen remains close to 160 against the dollar-a level not seen since July 2024, when the government stepped in with massive dollar sales to prop up the currency.
Beijing is considering ways to strike back against any tariffs reimposed under new legal authority—a situation that could bring an abrupt end to a fragile China-U.S. detente.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.