Definitions
structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure
Word origin
From Middle English sille, selle, sülle, from Old English syll, syl (“sill, threshold, foundation, base, basis”), from Proto-Germanic *sulī (“bar, sill”), from Proto-Indo-European *sel-, *swel- (“beam, board, frame, threshold”).
Used in a sentence
“She looked out the window resting her elbows on the window sill.”
“Minor palingenetic magmas probably were generated at this time and intruded the mantling rocks in the form of small sills and apophyses […].”
“The molten rock in the sills may have ignited vast reserves of shallowly buried natural gas, much like a match applied to a gas barbecue.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Window ledge”4 letters
Not quite right?
"Search similar patterns."
S___