| WINDOWS | Panes of glass in buildings |
| LIGHTS | White squares for the answers in crosswords; divisions of mullioned windows; or, the panes of glass in greenhouses and cold frames (6) |
| LOZEYN | Scots word for diamond-shaped panes of glass in latticed windows; or, rhombus patterns in embroidery (6) |
| ASTRAGAL | Bar separating panes of glass in cabinet making (8) |
| QUARREL | Pane of glass in row (7) |
| SASH | One of a pair of sliding frames containing a pane of glass for a window of the same name (4) |
| QUARRELS | Word for squabbles or wrangles that also refers to square things, including panes of glass, tiles or arrowheads for the bolts of arbalests/crossbows (8) |
| SHEAVE | Word, based on "disc, pane of glass, slice of a loaf", for a pulley-wheel; or, an impure fleck in finished paper (6) |
| GLAZE | Fit panes of glass to |
| GLAZES | Fits panes of glass into doors or windows (6) |
| PASS | Approve of casing for pane of glass (4) |
| SHEET | A leaf of paper; a mattress cover; or, a pane of glass (5) |
| LIGHT | Pane of glass weighing relatively little |
| WINDOWSHOPPING | Looking before buying a pane of glass? |
| WINDOW | Pane of glass set into a wall (6) |
| PANE | Word for a strip of cloth originally, later a sheet of glass in a window; or, a block of typically six postage stamps bound to the margin of a booklet, sometimes tete-beche (4) |
| WINDSCREEN | Sheet of glass in front of driver (10) |
| PAININTHENECK | Bloomin' nuisance, sound of glass in top of bottle |
| SHEETS | Trays upon which to bake biscuits; sails; panes of stamps; folios; or, wide expanses of ice, clouds or rain (6) |
| MULLIONS | Vertical strips between the panes of a window |