nineteen
/ˈnaɪntiːn/
Proposed by a contributor, not yet supported by evidence.
Meaning · English
The cardinal number occurring after eighteen and before twenty, represented in Roman numerals as XIX and in Arabic numerals as 19. It is the last/largest of the "teens".
Numeral
Examples
She says groovy like it's nineteen sixty-nine.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).
Common questions
What does “nineteen” mean?
The cardinal number occurring after eighteen and before twenty, represented in Roman numerals as XIX and in Arabic numerals as 19. It is the last/largest of the "teens".
Is “nineteen” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.