Definitions of sill:
  • noun:   structural member consisting of a continuous horizontal timber forming the lowest member of a framework or supporting structure
  • noun:   (geology) a flat (usually horizontal) mass of igneous rock between two layers of older sedimentary rock
  • name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #8882)

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See sill used in context: 171 poetry verses, 9 definitions

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