Nineteenth (adjective)

1. Constituting number nineteen in a sequence.
2. Occurring in the nineteenth position.

Origin:

From middle english nineteoth, from old english nigonteoða.

Examples:

1. The nineteenth century was a time of great change and progress in many fields.
2. Her nineteenth birthday was a special milestone, marking her transition to adulthood.
3. The team finished in nineteenth place out of twenty teams in the competition.
4. He was the nineteenth person to receive the award in its long history.
5. The nineteenth chapter of the book delves deeper into the author's personal experiences.