1. (n.) The state of being conscious; knowledge of one's own existence, condition, sensations, mental operations, acts, etc.
2. (n.) Immediate knowledge or perception of the presence of any object, state, or sensation.
3. (n.) Feeling, persuasion, or expectation; esp., inward sense of guilt or innocence.
Thesaurus Entries
advertence, advertency, alertness, all-night vigil, apperception, appreciation, appreciativeness, assiduity, assiduousness, attention, attention span, attentiveness, awareness, brain, care, carefulness, cognition, cognizance, concentration, concern, consideration, diligence, ear, earnestness, experience, faculties, feeling, head, heed, heedfulness, insight, insomnia, insomniac, insomnolence, insomnolency, intellect, intellectual gifts, intellectuals, intelligence, intentiveness, intentness, lidless vigil, mentality, mindfulness, noesis, note, notice, observance, observation, parts, percept, perception, realization, recognition, regard, regardfulness, remark, respect, response, response to stimuli, restlessness, sensation, sense, sense impression, sense perception, senses, sensibility, sensory experience, sentience, sleeplessness, thought, tossing and turning, vigil, wake, wakefulness, wise man, wits
