[Of doubtful origin.]

1

  1.  A slit or narrow opening in a building. Cf. SQUINT sb. 5.

2

1602–3.  in Hartland Gloss. (1891), 73. Item pd to Hughe the glasier for glasse for the litle Squinches of the Tower, xd.

3

1848.  Continental Ecclesiology, 95. Some open squinches looking into the synagogue, in three stages, are from the women’s galleries.

4

1879.  Temple Bar, Aug., 470. Many of these little churches … are of very massive construction, with a squinch or hagioscope practised in the thickness of the wall.

5

  2.  dial. A crevice between floor-boards or the like; a crack.

6

1837–.  in Devonshire glossaries, etc.

7