To stare at someone intensely with a glare; to scowl at or glower at someone, often showing anger or hostility.
忘れ物をした同僚が僕を睨みつけた。
A colleague who had forgotten something glared at me.
彼女は不機嫌そうに私を睨みつけて、口を閉ざした。
She glared at me sullenly and fell silent.
その犬は通りすがりの人を睨みつけて唸った。
The dog growled and glared at a passerby.