cause and effect

noun

plural causes and effects
: the direct relationship between an action or event and its consequence or result
There was an accident, so traffic was at a standstill. The gravitational pull of the moon causes the tides of the ocean. I stuck to a training plan, so I finished my race strong. Cause and effect is a concept we all learn in grade school, and we see it play out in hundreds of circumstances every day.Ben Gibson
"Human nature is to look for cause and effect," says Robert Baloh, professor of neurology and head and neck surgery at UCLA's David Geffen School of Medicine. … "I see this daily when I see patients. They're all sure something they ate or something they did caused their problem and their symptoms."Frank Bures
… focused on observable and verifiable causes and effects in the natural world …Rafi Eis

Examples of cause and effect in a Sentence

Recent Examples on the Web
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As this was an observational study, no firm conclusions can be drawn about cause and effect, the researchers noted. Khloe Quill, FOXNews.com, 12 July 2025 With his framing on Medicaid, Kennedy has reversed the causes and effects of America’s health woes. Nicholas Florko, The Atlantic, 2 July 2025 That library is the result of many lifetimes of work by Andy’s old friend Tuah (Henry Golding), who dropped out of soldiering to devote himself to documenting the immortals’ place in history — the cause and effect of their exploits that Copley traced. David Rooney, HollywoodReporter, 2 July 2025 These models ingest and analyze signals from hundreds of sources—from ad placement and local time of day to device type, audience behaviors and contextual relevance—to identify complex patterns of cause and effect that can be used to gauge the likelihood of a conversion. Sergii Denysenko, Forbes.com, 23 June 2025 See All Example Sentences for cause and effect

Word History

First Known Use

1599, in the meaning defined above

Time Traveler
The first known use of cause and effect was in 1599

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Cite this Entry

“Cause and effect.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cause%20and%20effect. Accessed 14 Aug. 2025.

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