Longman Dictionary of Contemporary English homepage

consciousness

 noun
     
Related topics: Medicine
con‧scious‧ness W3
1 [uncountable]M the condition of being awake and able to understand what is happening around you:
David lost consciousness (=went into a deep sleep) at eight o'clock and died a few hours later.
She could faintly hear voices as she began to regain consciousness (=wake up).
2 [uncountable and countable] your mind and your thoughts:
The painful memories eventually faded from her consciousness.
Hypnosis is an altered state of consciousness.
3 [countable] someone's ideas, feelings, or opinions about politics, life etc:
The experience helped to change her political consciousness.
4 [uncountable] when you know that something exists or is true [= awareness]:
This will increase public consciousness of the pollution issue.
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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