position 17 in a countable series of things
"She was the seventeenth person to cross the finish line during the marathon."
One of seventeen equal parts of a whole.
"The recipe calls for adding just the seventeenth part of the spice blend to achieve the perfect flavor balance."
coming next after the sixteenth in position
"She finished as the seventeenth runner to cross the finish line, placing just behind her teammate who took sixteenth place."
The ordinal form of the number seventeen.
"She finished her presentation on the seventeenth spot in the lineup."