window seat

a seat built beneath the sill of a recessed or other window.

a bench having two arms and no back.

Origin of window seat

First recorded in 1745–55

Leah stood up in the window-seat, rubbing the panes of glass dimmed with smoke.

Jane Eyre |Charlotte Bronte
Safe in her room, the door locked, she sat down on the window-seat and began to search out her plan of action.

Find the Woman |Arthur Somers Roche
This was announced by a stack of new books, review copies and presentation copies, awaiting me on my window-seat.

From a Cornish Window |Arthur Thomas Quiller-Couch
Mona, still looking alarmed, slipped from the window-seat and followed Millie down the stairs.

The Making of Mona |Mabel Quiller-Couch

She saw one of his unfinished boxes on the window-seat, which served him for a work-bench; his tools were upon the floor.

Tales And Novels, Volume 1 (of 10) |Maria Edgeworth

window seat

a seat below a window, esp in a bay window

a seat beside a window in a bus, train, etc