noun: (dated) A stammering speech disorder, in which the /n/ sound is given to other consonants.
noun: (archaic, rare) An inclination of Germanic languages to employ -n in endings.
noun: Alternative spelling of nunation. [The use of a suffix ("-n") signifying a lack of syntactical definiteness of the noun or adjective in standard Arabic. It is written as a diacritic over the final letter.]