Other forms: squinting, squints, squinted
To squint is to half close your eyes to see better. Against bright light, or at something too small to read.
It usually signals sun, poor eyesight or a bad print. As a noun, squint has a separate medical meaning, since a squint is a condition where the eyes do not point in the same direction, which doctors call strabismus. That is why saying somebody has a squint means something quite different from saying they are squinting. There is also a lovely architectural sense, since a squint is a small angled opening in a church wall.
Built from
Derived from asquint (“obliquely, with a sidelong glance”).
Etymology from Wiktionary, CC BY-SA