13-letter words starting with effi
- efficaciously — capable of having the desired result or effect; effective as a means, measure, remedy, etc.: The medicine is efficacious in stopping a cough.
- efficientness — The quality of being efficient; efficiency.
On this page, we collect all 13-letter words starting with EFFI. It’s easy to find right word with a certain length. It is the easiest way to find 13-letter word that beginning with EFFI to use in Scrabble or Crossword puzzles.