staring piercingly; looking hard
Used with verbs like 見る or 眺める to describe staring so intently it feels like boring a hole through something.
彼は穴の開くほど私の顔を見つめた。
He stared at my face so hard it felt like he was boring holes into it.
Standard kanji spelling for this idiomatic expression.
Kana spelling of the verb part; common in casual writing.
Alternate kanji for あく; less common for this expression.
Alternate kanji for あく; rarely used in this expression.
Literally 'enough to open a hole'; an idiomatic phrase emphasizing the intensity of a gaze.