Oral
Part of speech: adjective
Definition: Relating to the mouth. Spoken rather than written.
Part of speech: noun
Definition: Short for an oral test or oral exam, particularly in a language class. Short for a physical oral examination or oral exam. Short for oral sex.
Example sentence: It is hardly an exaggeration to say that oral teachers and sign teachers found it difficult to sit down in the same room without quarreling, and there was intolerance upon both sides. To say 'oral method' to a sign teacher was like waving a red flag in the face of a bull, and to say 'sign language' to an oralist aroused the deepest resentment.
Unwritten
Part of speech: verb
Definition: To erase; to revert to a state where (something) was never written.
Part of speech: adjective
Definition: Spoken or otherwise communicated other than in writing.Implicit or understood but not formally articulated.
Example sentence: The unwritten rule in college basketball is the black assistant goes and gets the black players. Don't worry about the X's and O's. Just recruit.