Efficacy
noun
Ability to produce results
“The council debated the efficacy of the new quarantine measures.”
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What does efficacy mean?
Commonly confused with
- NotComplete failure
- NotCareful planning
- NotLoud opposition
Nearby words
Efficacy is one of 1,969 SAT words in Professor Tas, a free story game where you learn them in context instead of from a list.
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