September 11, 2001 is typically spoken as a date reference in English and refers to the events of that day; when used in conversation it may be treated as a proper noun phrase containing multiple elements (month, day, year). The term is often pronounced with attention to natural date-conversion intonation, and in some contexts serves as a nominal reference or in reporting. It is not usually stressed as a single lexical unit but rather as the sequence ‘September’ + ‘eleventh’ + ‘two thousand one’ in flowing speech.
Full pronunciation guide
