How to spell EFFIACY correctly?

The correct spelling for "efficacy" refers to the ability of something to produce the desired results. Possible suggestions for the misspelling "effiacy" include "efficacy", "efficacy", and "efficacy". It is important to double-check spellings, especially in professional environments.

• efface I will efface all evidence of our secret rendezvous.
• efficacy On the efficacy of the new vaccine, scientists are still uncertain.
• effigy The effigy of the witch is horrifying.

Excatally

• exact
• exacted
• exactingly
• exactly
• exacts
• executable
• exotically
• extol
• inexactly
• oxtail