a or an; the indefinite article (when the initial sound of what will follow is unclear)

(fandom slang) author's note; a note appended to a work of fan fiction by its author, typically containing acknowledgments, background information, or content warnings.

The fourteenth letter of the English alphabet, called en and written in the Latin script.

The ordinal number fourteenth, derived from this letter of the English alphabet, called en and written in the Latin script.

north / (grammar) noun / (grammar) neuter gender / (organic chemistry) normal / Neutral / No / Shortening of and, used in set phrases like rock-n-roll.

not applicable / not available / not assigned, no assignment / non-assessable / not attested / not approved

Initialism of no answer. / Initialism of nothing added.

Alternative form of -en

Alternative form of -an, adjective or noun suffix meaning "of or pertaining to", used with words which already end in a.

Alternative form of -en (past participle ending)