What is the meaning of conscious?

adjective

• Intentionally conceived.
  • usage: "a conscious effort to speak more slowly"; "a conscious policy"
  • synonyms: witting
• Knowing and perceiving; having awareness of surroundings and sensations and thoughts.
  • usage: "remained conscious during the operation"; "conscious of his faults"; "became conscious that he was being followed"
• Followed by `of'. ( showing realization or recognition of something) "few voters seem conscious of the issue's importance"; "conscious of having succeeded"; "the careful tread of one conscious of his alcoholic load- Thomas Hardy