out of the corner of one's eye

prep_phrase

(of a look or glance) Sideways, obliquely, askance / (of a look or glance) With suspicion.

She saw him out of the corner of her eye.

意味（1）

(of a look or glance) Sideways, obliquely, askance

I caught sight of him out of the corner of my eye.

意味（2）

(of a look or glance) With suspicion.

When he said he would pay her back next week, she looked at him out of the corner of her eye.