This page will teach you synonyms of the English word efficacy and show you how to use efficacy in a sentence.
The top synonym for efficacy is ability.
Some other good synonyms for efficacy are:
Watch video clips that show how to use efficacy in a sentence. Read the captions and think about the collocations (words found in the same sentence as efficacy). Listen to the usage of efficacy in context. Think about what the word means. Pay attention to the pronunciation of efficacy.
Tap the Play Next button to go to another example of efficacy used in a sentence.
Search our word library to learn synonyms and see sentences for another word!
Want to build and strengthen your word knowledge? Play Vocab Victor every day to learn more words!