Sill

noun
sɪl

Noun

  • (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock

    Type of:StoneRock

  • structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure

Dictionary Validity

Tournament Word List (TWL)
Scrabble US
Collins Scrabble Words (CSW21)
Scrabble UK
ENABLE Dictionary
Words With Friends
Combined US/UK Scrabble Dictionary
SOWPODS
North American Scrabble (NWL2020)
NASPA
More 4-letter wordsWords starting with S