Definition of "Recognize" :
verb: accept (someone) to be what is claimed or accept his power and authority
"We do not recognize your gods."
verb: perceive to be the same
verb: be fully aware or cognizant of
verb: express obligation, thanks, or gratitude for
verb: express greetings upon meeting someone
verb: detect with the senses
verb: grant credentials to
"The Regents officially recognized the new educational institution."
verb: show approval or appreciation of
"My work is not recognized by anybody!."
verb: exhibit recognition for (an antigen or a substrate)