oral

using speech rather than writing

“an oral tradition”

of or involving the mouth or mouth region or the surface on which the mouth is located

“the oral cavity”

an examination conducted by spoken communication

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 relating to or affecting or for use in the mouth

“oral hygiene”