Awareness is the state of knowing something, such as the awareness that the sun comes up every morning.

The adjective aware gets turned into a noun when the suffix -ness is added, so awareness is the state of being aware, or having knowledge of something. Its roots are Germanic, and come from the Old English wær meaning "wary, cautious." Awareness can be something you notice, want to tell others about, or already know. You could "raise awareness" of a cause, like fighting breast cancer. Yet, your awareness of the baby sleeping next door might prevent you from having band practice in the garage. Smart move.

Definitions of awareness
  1. noun
    state of elementary or undifferentiated consciousness
    “the crash intruded on his awareness
    synonyms: sentience
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    type of:
    an alert cognitive state in which you are aware of yourself and your situation
  2. noun
    the state of having knowledge of something
    “he had no awareness of his mistakes”
    synonyms: cognisance, cognizance, consciousness, knowingness
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    a lack of knowledge or recognition
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    awareness of your own individuality
    an intuitive awareness
    a general conscious awareness
    bearing, orientation
    a person's awareness of self with regard to position and time and place and personal relationships
    self-awareness plus the additional realization that others are similarly aware of you
    sense of direction
    an awareness of your orientation in space
    sense of responsibility
    an awareness of your obligations
    type of:
    a clear and certain mental apprehension
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