Alert, awake; with one's mental faculties active. / Aware of one's own existence; aware of one's own awareness.

The part of the mind that is aware of itself; the consciousness.

Aware of oneself as an individual being. / Excessively conscious of one's appearance or behaviour. / Uncomfortably over-conscious of one's appearance or behaviour; socially ill at ease.

(law, US, antitrust law) Price fixing that occurs without direct communication between the participants, but where the participants instead intentionally follow one another in raising prices to maximize profits at the expense of competitive pricing.

Alternative spelling of class-conscious

(of a person) Aware of the socioeconomic class of oneself and others. / (of a community) Stratified into such classes.

Alternative spelling of unselfconscious

Only partially conscious and aware; confused, groggy.

Having an attitude in which one has an awareness of the healthiness of one's diet and lifestyle / (of a a product) aimed at people with such an attitude

Interested in the latest fashions, and in wearing fashionable clothes.