sill
(noun)
noun
1. structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure
Definition categories: man–made
2. (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock
Definition categories: object, rock, stone
Sentences with sill as a noun:
- She looked out the window resting her elbows on the window sill.
- the nasal sill