Inflected forms: rec·og·nized, rec·og·niz·ing, rec·og·niz·es 1. To know to be something that has been perceived before: recognize a face.2. To know or identify from past experience or knowledge: recognize hostility.3. To perceive or show acceptance of the validity or reality of: recognizes the concerns of the tenants.4. To permit to address a meeting: The club's president recognized the new member.5. To accept officially the national status of as a new government. 6. To show awareness of; approve of or appreciate: recognize services rendered.7. To admit the acquaintance of, as by salutation: recognize an old friend with a cheerful greeting.8.Law To enter into a recognizance. 9.Biology To exhibit recognition for (an antigen or a substrate, for example).
ETYMOLOGY:
Middle English recognisen, to resume possession of land, alteration (influenced by Medieval Latin recognizre, to recognize) of Old French reconoistre, reconoiss-, to know again, from Latin recognscere : re-, re- + cognscere, to get to know; see gn- in Appendix I.