徹てっする

suru verb (special), intransitive verb

penetrate; sink in; be understood deeply

Used when an idea, feeling, or realization deeply penetrates one's mind or heart; often in the form 心に徹する or 骨身に徹する.

• 彼かれの言こと葉ばが心こころに徹てっした。

  His words sank deep into my heart.

• 寒さむさが骨ほね身みに徹てっする。

  The cold penetrates to the bone.

suru verb (special), intransitive verb

devote oneself; do intently; be absorbed in

Expresses single-minded dedication to an activity; often used with ～に徹する, e.g., 研究に徹する.

• 彼かれは研けん究きゅうに徹てっしている。

  He devotes himself entirely to his research.

• 彼かの女じょは仕し事ごと一ひと筋すじに徹てっするタイプだ。

  She is the type who throws herself completely into her work.

suru verb (special), intransitive verb

do throughout; do all night

Used when an activity is carried on continuously through a period, especially overnight; common in phrases like 夜を徹する or 一晩中徹する.

• 彼かれらは夜よるを徹てっして議ぎ論ろんした。

  They discussed all through the night.

• 試し験けん前まえは徹てつ夜やで勉べん強きょうする学がく生せいも多おおいが、夜よるを徹てっするのは体からだに良よくない。

  Many students study all night before exams, but staying up all night is not good for your health.