Dictionary.com
definitions
  • synonyms

L sill

See more synonyms on Thesaurus.com
noun Carpentry.
  1. a sill for a building frame composed of a plate resting on the basement wall and a header or joist at the outer edge of the plate.
Show More
Compare box sill.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018