-acy

Usage

• fallacy

  A fallacy is an idea or belief that is false.

• efficacy

  Efficacy is the ability or power to produce an expected effect or result.

• legacy

  A legacy can be a gift that is inherited from a family member or something handed down from the past.

• accuracy

  The accuracy of something, such as an answer to a problem or a measurement with a ruler, is how correct or close to the truth it actually is.