Sill

[ sil ]

/ sɪl /

Mount, a mountain in E central California, in the Sierra Nevada Mountains. 14,153 feet (4314 meters).

British Dictionary definitions for mount-sill

sill

/ (sɪl) /

a shelf at the bottom of a window inside a room

a horizontal piece along the outside lower member of a window, that throws water clear of the wall below

the lower horizontal member of a window or door frame

a continuous horizontal member placed on top of a foundation wall in order to carry a timber framework

a flat usually horizontal mass of igneous rock, situated between two layers of older sedimentary rock, that was formed by an intrusion of magma

Old English syll; related to Old Norse svill sill, Icelandic svoli tree trunk, Old High German swella sill, Latin solum ground

sill

[ sĭl ]

A sheet of igneous rock intruded between layers of older rock. See illustration at batholith.