The antonyms have distinct nuances: *Awake* refers to being conscious and aware, *alert* refers to being watchful and attentive, and *anesthetized* refers to being sedated or under anesthesia. Use these words in medical contexts, daily life, and emergency situations to describe states of consciousness and readiness.

그녀는 시험을 위해 밤새도록 *깨어* 있었습니다.

彼女は一晩中試験のために勉強していました。

She was *awake* all night studying for her exams.

경비원은 건물의 안전을 보장하기 위해 밤새도록 *경계*를 유지했습니다.

警備員は、建物の安全を確保するために一晩中*警戒*し続けました。

The security guard remained *alert* throughout the night to ensure the safety of the building.