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Definitions

experiment

[ik-sper-uh-muhnt, ek-sper-uh-ment] / ɪkˈspɛr ə mənt, ɛkˈspɛr əˌmɛnt /
NOUN
investigation, test
Synonyms
STRONGEST
analysis attempt enterprise examination exercise experimentation measure observation operation practice probe procedure research search study trial undertaking venture
STRONG
agreement assay check dissection essay fling proof quiz rehearsal scrutiny speculation try try-on tryout verification
WEAK
R and D dry run research and development trial and error trial run
Antonyms
STRONGEST
abstention idleness ignorance inaction neglect
VERB
investigate, test
Synonyms
STRONGEST
analyze examine explore
STRONG
assay diagnose probe prove research sample scrutinize search speculate study try venture verify weigh
WEAK
fool with futz around mess around play around with practice with put to the test shake down try on try on for size try out
Antonyms
STRONG
abstain discredit disprove ignore neglect

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.

To investigate this idea, the scientists designed a controlled experiment using different caffeine levels.

From Science Daily • Apr. 18, 2026

Repeating the experiment with girls next seemed logical and fair.

From BBC • Apr. 12, 2026

“We will experiment, invest disproportionately behind what matters and pull back when something isn’t working.”

From MarketWatch • Apr. 9, 2026

But under practices that have prevailed for decades, they rarely learn that conscience, moral duty and religious conviction shaped the decisions that defined the American experiment.

From The Wall Street Journal • Apr. 9, 2026

Janie, Mikayla’s best friend, raised her hand and explained that she, too, believed in animal rights and must be removed from the experiment.

From "The Science of Breakable Things" by Tae Keller

Vocabulary lists containing experiment

The SAT: Language of the Test, List 4

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The Scientific Method

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The New SAT: The Language of the Test

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