cog ‧ ni ‧ zant BrE AmE , cognisant /ˈkɒɡnəz ə nt, ˈkɒɡnɪz ə nt $ ˈkɑːɡ-/ adjective [not before noun] formal
if someone is cognizant of something, they know about it and understand it
cognizant of
He was cognizant of the peculiarities of the case.
cog ‧ ni ‧ zant BrE AmE , cognisant /ˈkɒɡnəz ə nt, ˈkɒɡnɪz ə nt $ ˈkɑːɡ-/ adjective [not before noun] formal
if someone is cognizant of something, they know about it and understand it
cognizant of
He was cognizant of the peculiarities of the case.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012