aural / oral are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
aural: (adjective) of or pertaining to hearing or the ear. (adjective) relating to or characterized by an aura.
oral: (noun) an examination conducted by spoken communication. (adjective) using speech rather than writing. (adjective) of or relating to or affecting or for use in the mouth. (adjective) of or involving the mouth or mouth region or the surface on which the mouth is located. (adjective) 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.
aural: AO·r·ah·l
oral: AO·r·ah·l
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)