15-letter words starting with sig
- sigmoid flexure — Zoology. an S -shaped curve in a body part.
- sign the pledge — to make a vow to abstain from alcoholic drink
- significatively — serving to signify.
On this page, we collect all 15-letter words starting with SIG. It’s easy to find right word with a certain length. It is the easiest way to find 15-letter word that beginning with SIG to use in Scrabble or Crossword puzzles.