The cardinal number equal to 18 + 1.
Totaling nine more than ten.
The 19th in a set or sequence.
The cardinal number between eighteen and twenty; 19; XIX.
Origin of nineteen
From Middle English nynetene, nintene, from Old English nigontÄ«ene, nigontÄ“ne, from Proto-Germanic *newuntehun. Compare Dutch negentien, German neunzehn, Danish nitten.