adjective

having knowledge or awareness.

statesmen must be cognizant of the political boundaries within which they work

aware,conscious,apprised,abreast,sensible of/to,alive to,sensitive to,alert to,familiar with,acquainted with,in the know about,au fait with,conversant with,au courant with,up to date (with),up with,well versed in,knowledgeable about,well informed about,no stranger to,well up on,genned up on,clued in on,wise to,hip to,ware of