WORD OF THE DAY
The degree to which a method or medicine brings about a specific result is its efficacy. You might not like to eat it, but you can't question the efficacy of broccoli as a health benefit.
Efficacy is a more formal way to say effectiveness, both of which stem from the Latin verb efficere "to work out, accomplish." The effectiveness, or efficacy, of something is how well it works or brings the results you hoped for. A scientist does research to determine the efficacy of a vaccine or medicine under development. If it is efficacious, it will cure or prevent a disease.
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Vocabulary lists containing efficacy
The Word Knowledge section of the Armed Services Vocational Aptitude Battery (ASVAB) is a vocabulary test that assesses word meanings, synonyms, and antonyms in a multiple-choice format. Practicing this list on Vocabulary.com will expand your word knowledge and hone your test-taking skills via a variety of contexts and question types.
Derived from Latin, the English suffix -acy in English means "the state of" or "the quality or condition of."
No time to scour the headlines or watch the news? No problem! We’ve rounded up the top words heard, read, debated, and discussed this week. This first week of the New Year was filled new beginnings. Orrin Hatch, longtime senator from Utah, announced his retirement and drew the ire of the President. The recent protests in Iran suggest that the Iranian people will rebuff authoritarian rule, and new overtures by Kim Jong-Un may thaw chilly relations between North and South Korea. Take a look back at the week that was, vocabulary style.
As you read Nadine Gordimer's "Once Upon a Time," learn this word list. Here are links to lists for texts in Grade 9's Collection 1: A Quilt of a Country, Once Upon a Time, Rituals of Memory, The Gettysburg Address
Words from Round 2 of the 2014 Scripps National Spelling Bee.
