Synonyms for Cognizant (same or very similar meaning)
WordNet sense 1 (aware intuitively or intellectually of something sensed):
sensible
WordNet sense 2 ((followed by `of') showing realization or recognition of something):
conscious
WordNet sense 3 ((usually followed by `to') showing acute awareness; mentally perceptive):
alive, awake
WordNet sense 4 ((sometimes followed by `of') having or showing knowledge or understanding or realization or perception):
aware, cognisant
From the ODE community, based on WordNet
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