All 6 Uses

conscious
in
To Kill a Mockingbird
(Edited)

When it healed, and Jem's fears of never being able to play football were assuaged, he was seldom self-conscious about his injury.
p. 3.2 *

self-conscious = uncomfortable about what others might think
In later years, I sometimes wondered exactly what made Jem do it, what made him break the bonds of "You just be a gentleman, son," and the phase of self-conscious rectitude he had recently entered.
p. 118.1

self-conscious = self-aware
She was conscious to the last, almost.
p. 127.8

conscious = awake
"Conscious," he smiled, "and cantankerous."
p. 127.9
This practice allegedly overcame a variety of evils: standing in front of his fellows encouraged good posture and gave a child poise; delivering a short talk made him word-conscious; learning his current event strengthened his memory; being singled out made him more than ever anxious to return to the Group.
p. 279.7

conscious = aware
No—no, darling, he's unconscious. We won't know how badly he's hurt until Dr. Reynolds gets here.
p. 303.1 *

unconscious = in a state similar to sleep where one is not aware of anything

standard prefix: The prefix "un-" in unconscious means not and reverses the meaning of conscious. This is the same pattern you see in words like unhappy, unknown, and unlucky.

Definitions:

(1) (conscious as in: conscious after the operation)
awake (not asleep or in a state similar to sleep where one is unaware of anything)
(2) (conscious as in: a conscious effort to lose weight)
intentional (done on purpose) -- perhaps with significant effort
(3) (conscious as in: environmentally conscious)
aware or concerned about something
(4) (conscious as in: the conscious mind)
mental activity of which one is self-aware
(5) (conscious as in: conscious life on other planets)
capable of thought, self-reflection, and will
(6) (meaning too rare to warrant focus)