She finished in third place.

Relating to the number three in a sequence.
He is the third person to arrive.
This is my third attempt at the puzzle.
They live on the third floor.
third place
third time
third party
tertiary
triple
triadic
He finished in third place.

Relating to the number three in a sequence; being the third in order.
She was the third person to arrive.
The third book in the series is my favorite.
He scored the third goal of the match.
third place
third time
third party
tertiary
triadic
triple