flaw

A flake, fragment, or shiver.

A thin cake, as of ice.

A crack or breach, a gap or fissure; a defect of continuity or cohesion.

There is a flaw in that knife.

That vase has a flaw.

A defect, fault, or imperfection, especially one that is hidden.

Has not this also its flaws and its dark side?

A defect, fault, or imperfection, especially one that is hidden.

To add a flaw to, to make imperfect or defective.

To become imperfect or defective; to crack or break.

A sudden burst or gust of wind of short duration; windflaw.

And snow and haile and stormie gust and flaw

Yniol with that hard message went; it fell, / Like flaws in summer laying lusty corn: […]

A storm of short duration.

A sudden burst of noise and disorder

And deluges of armies from the town / Come pouring in; I heard the mighty flaw.