Consciousness; the state of being awake and aware of oneself and the environment (often used medically to refer to level or presence of consciousness).
彼は事故で一時的に意識を失った。
He temporarily lost consciousness in the accident.
医師は患者の意識レベルを詳しく調べた。
The doctor examined the patient's level of consciousness in detail.
搬送されたが、幸い意識は戻った。
He was transported (to hospital), but fortunately his consciousness returned.
Becoming aware of something; awareness or sense (paying attention to or recognizing something).
環境問題への意識が高まっている。
Awareness of environmental issues is increasing.
彼は自分の弱点に意識を向け、改善しようとした。
He became aware of his weaknesses and tried to improve them.
In Buddhism: mano‑vijñāna (mental consciousness), the aspect of mind that cognizes sensory information (specialized term).
仏教の教義では、意識（mano）は六つの感覚器官と結び付くと説明される。
In Buddhist doctrine, consciousness (mano) is explained as being connected with the six sense organs.
瞑想では意識の働きを観察する練習が行われる。
Meditation practices involve observing the functions of consciousness.