Definition, Meaning & Synonyms

cill

Noun
/sɪl/
Definition
The horizontal member at the bottom of a window frame or other structure.
Examples
  • The cill helps to prevent water from seeping into the building.
  • When installing new windows, make sure to check the cill for any damage.
  • The wooden cill was painted to match the rest of the trim.
Meaning
A cill is a structural element that provides support and protection at the base of a window or door opening.
Synonyms
  • sill
  • bottom plate
  • ledge