effective
Usage
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.
Guinea-Bissau currently vaccinates children against hepatitis B at six weeks, which means it is less effective.
From BBC ● Nov. 5, 2026
California’s minimum wage, effective at the start of this year, is $16.90 per hour.
From Los Angeles Times ● Nov. 4, 2026
Such damage can interfere with proteins and other essential components of cells, particularly when the body's normal protective systems become less effective.
From Science Daily ● Nov. 4, 2026
It said the overhaul was necessary to ensure services could "remain safe, effective and sustainable, while helping more people stay well, remain independent and receive care at home or closer to home".
From BBC ● Nov. 3, 2026
Even if they had, there was no effective treatment on offer.
From "The Woman All Spies Fear" by Amy Butler Greenfield
Vocabulary lists containing effective
"Diary of a Wimpy Kid" by Jeff Kinney
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Hatchet
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STAAR English I: The Language of the Test 1
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