Two general ways the word consciousness can be used…
First, as awareness and its content, recognized as no other than awareness itself. This awake void arises as form, it allows yet is inherently free from any and all forms. It is also inherently and already free from any sense of I and Other, which only comes through making stories something more than just thoughts. This is Big Mind, Spirit, Brahman, whether it is awake to itself or not.
Then, filtered through beliefs in different ways.
For instance, we can filter out pure awareness from its content, and call this pure awareness consciousness. Seeing is consciousness, but not the seen.
Or we can use consciousness to refer to awareness and its content, but just a region of its content. For instance, it can mean a combination of awareness and what is inside the boundary of the psyche, such as thoughts, feelings and so on.
This last version is also the most common one. After all, it reflects how it appears when we believe in the story of a separate self. Interestingly, it is also the one that is most contrived, forced and arbitrary, since it is filtered through the most layers of stories.