Open windowsill Synonyms

Definitions for Open

(adjective) allowing passage without obstruction
(adjective) freely available for use or participation by all
(adjective) being in a situation where one is likely to meet with harm

OW abbreviation

OW is an abbreviation for Open Windowsill

What does OW stand for?

OW stands for "Open Windowsill"

Definitions for Windowsill

(noun) the sill of a window; the horizontal member at the bottom of the window frame