could
Americanauxiliary verb
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a simple past tense of can.
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(used to express possibility).
I wonder who that could be at the door. That couldn't be true.
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(used to express conditional possibility or ability).
You could do it if you tried.
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(used in making polite requests).
Could you open the door for me, please?
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(used in asking for permission).
Could I borrow your pen?
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(used in offering suggestions or advice).
You could write and ask for more information. You could at least have called me.
verb
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used as an auxiliary to make the past tense of can 1
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used as an auxiliary, esp in polite requests or in conditional sentences, to make the subjunctive mood of can 1
could I see you tonight?
she'd telephone if she could
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used as an auxiliary to indicate suggestion of a course of action
you could take the car tomorrow if it's raining
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(often foll by well) used as an auxiliary to indicate a possibility
he could well be a spy
Usage
See care.
Etymology
Origin of could
First recorded in 1450–1500; alteration of late Middle English coude, coud, Old English cūthe; modern -l- from would 1, should
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.
And a third firefighter said last month that crew members were upset when told to pack up and leave but that they could not ignore orders, according to the texts.
From Los Angeles Times
If weakness in the sector drags on broader economic growth, that could dent the case for rate hikes.
Economists also fear repeated trade shocks could leave scars on consumer sentiment.
While Beijing has recently signaled more tolerance for a stronger yuan, Chinese officials have also frequently warned against bumpy currency fluctuations that could hurt exporters.
A representative of the Defense Department could not be reached for comment.
From BBC
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.