add by mixing or blending on or attaching; "work in the butter and the dough will get the right consistency"; "In his speech, the presidential candidate worked in a lot of learned words"
endorsed authoritatively as having met certain requirements; "a certified public accountant"
holding appropriate documentation and officially on record as qualified to perform a specified function or practice a specified skill; "a registered pharmacist"; "a registered hospital"
having quality or payment or delivery guaranteed; "certified milk"; "certified check"; "certified mail"
a stage in psychosexual development when the child's interest is concentrated in the mouth; fixation at this stage is said to result in dependence, selfishness, and aggression
of or involving the mouth or mouth region or the surface on which the mouth is located; "the oral cavity"; "the oral mucous membrane"; "the oral surface of a starfish"
using speech rather than writing; "an oral tradition"; "an oral agreement"
of or relating to or affecting or for use in the mouth; "oral hygiene"; "an oral thermometer"; "an oral vaccine"
people in general (often used in the plural); "they're just country folk"; "folks around here drink moonshine"; "the common people determine the group character and preserve its customs from one generation to the next"