determine
Americanverb (used with object)
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determines,
present (3rd person singular)
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determined,
past participle, past
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determining
present participle
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to conclude or ascertain, as after reasoning, observation, etc.
- Synonyms:
- verify
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to settle or decide (a dispute, question, etc.) by an authoritative or conclusive decision.
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to cause, affect, or control; fix or decide causally.
Demand for a product usually determines supply.
- Synonyms:
- influence
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to give direction or tendency to; impel.
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Geometry. to fix the position of.
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Logic. to limit (a notion) by adding differentiating characteristics.
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Chiefly Law. to put an end to; terminate.
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to lead or bring (a person) to a decision.
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to decide upon.
verb (used without object)
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determines,
present (3rd person singular)
-
determined,
past participle, past
-
determining
present participle
-
to come to a decision or resolution; decide.
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Chiefly Law. to come to an end.
verb
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to settle or decide (an argument, question, etc) conclusively, as by referring to an authority
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(tr) to ascertain or conclude, esp after observation or consideration
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(tr) to shape or influence; give direction to
experience often determines ability
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(tr) to fix in scope, extent, variety, etc
the river determined the edge of the property
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to make or cause to make a decision
he determined never to marry
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(tr) logic to define or limit (a notion) by adding or requiring certain features or characteristics
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(tr) geometry to fix or specify the position, form, or configuration of
two points determine a line
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law to come or bring to an end, as an estate or interest in land
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(tr) to decide (a legal action or dispute)
Usage
What does determine mean? Determine means to conclude, as after reasoning or observing, as in After considering all my options, I’ve determined which college I want to attend. Generally, to determine something is to come to a conclusive decision from a place of authority on the subject. Determine can also mean to cause or control, as in How much homework my teacher assigns will determine whether I can go to the game tonight. Determine is also used to mean to give direction to, as a boss might determine what tasks their employees will do. Example: I have determined that the cause of death was cardiac arrest.
Other Word Forms
Derived Forms
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quasi-determineverb
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redetermineverb
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interdetermineverb (used with object)
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undeterminingadjective
Inflected Forms
Participles
Conjugated Forms
Present
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determinesimple
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determinessimple
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have determinedperfect
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has determinedperfect
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am determiningprogressive
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are determiningprogressive
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is determiningprogressive
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have been determiningperfect progressive
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has been determiningperfect progressive
Past
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determinedsimple
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had determinedperfect
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was determiningprogressive
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were determiningprogressive
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had been determiningperfect progressive
Future
Etymology
Origin of determine
First recorded in 1350–1400; Middle English, from Old French determiner, from Latin dētermināre “to mark out and fix boundaries,” equivalent to dē- prefix indicating separation + termināre “to bound, limit”; see de-, terminate
Explanation
If you determine something, you figure it out or settle a question, like when, after checking paws and hands, you determine that it's not the dog that ate your candy stash, but your kid sister. Determine comes from the Latin for "bring to a close," and when you determine something, you have closed all the questions you have about it and are quite sure you know the answer. If you become a detective, you'll have to determine who did the crime. After working through a mathematical problem, you determine the value of X. Determine can also mean influence. Your childhood spent in your grandmother's delightful kitchen might have determined your future career as a baker.
Vocabulary lists containing determine
Jim Burke's Academic Vocabulary List
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Vocabulary of the Common Core
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TEKS ELAR Academic Vocabulary List (5th-7th grades)
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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.
See Examples For:
For Mahony, it isn’t profit and loss that will determine DSI’s success, but the credibility it brings to Indonesia’s market.
From The Wall Street Journal ● Aug. 24, 2026
"We will not allow any nation to determine our future," he said.
From Barron's ● Aug. 22, 2026
Future studies will need to determine whether the immune benefits seen in mice can also be reproduced in humans.
From Science Daily ● Aug. 22, 2026
Spokesman Ryan Gustin said the facilities were valuated using independent appraisers and federal acquisition standards “to determine objective fair market value.”
From Los Angeles Times ● Aug. 22, 2026
It is a variation of the basic principle that if you know one angle and one side of an equilateral or right-angled triangle, then you can determine the other angles and sides.
From "The Invention of Science" by David Wootton
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The crackdown also comes amid questions over how Hegseth determines who gets access to Pentagon information.
From Salon ● Aug. 22, 2026
According to Ben Snider and his portfolio strategy research team, what determines stock market returns for this asset class at present are prospects for the AI trade.
From MarketWatch ● Aug. 21, 2026
But as important is the emperor’s-new-clothes effect, which determines when it’s personally advantageous to ignore plainly obvious realities.
From The Wall Street Journal ● Aug. 18, 2026
For cosmology, gravity determines how matter behaves across enormous distances.
From Science Daily ● Aug. 18, 2026
Rank determines whom it can associate with and how; where and when it can eat; where it can rest; where it can drink; and so on.
From "Life of Pi" by Yann Martel
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“I was told it wouldn’t work, but that just made me more determined to prove that a focused concept would work.”
From Slate ● Aug. 24, 2026
The remaining shareholder return plan will be determined at its January board meeting, after 2026 results are confirmed, the company said.
From MarketWatch ● Aug. 24, 2026
It must learn to be as determined and inventive as Ukraine.
From The Wall Street Journal ● Aug. 23, 2026
With Iraola determined to have his wingers able to play on both sides, it remains to be seen if that experiment persists once Liverpool get more attackers in.
From BBC ● Aug. 23, 2026
But he’s been determined to make things work in Arizona.
From "Clairboyance" by Kristiana Kahakauwila
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The team discovered that electrical charge is a key factor in determining whether antibody fragments can remain stable and functional inside cells.
From Science Daily ● Aug. 20, 2026
Quinn Yeargain, a professor of the law of democracy at Michigan State University College of Law, said Median’s intent would be a decisive factor in determining whether any laws were broken.
From Los Angeles Times ● Aug. 19, 2026
Readers are fully capable of determining for themselves whether a work has value.
From The Wall Street Journal ● Aug. 17, 2026
There are many factors that go into determining how much of an impact eliminating the tax cap would have on the Social Security’s bottom line.
From MarketWatch ● Aug. 14, 2026
After observing for a while and determining that they were harmless, I decided to go down to the river for a swim as well.
From "A Long Way Gone: Memoirs of a Boy Soldier" by Ishmael Beah
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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.