Definitions

1. noun

the ordinal number of something that comes sixth in a series or sequence, especially in sports, such as a tournament or a season

“The team won its sixtieth game of the season, a remarkable achievement.”

2. adjective

being one of something that comes sixth in a series or sequence

“The sixtieth anniversary of the event was celebrated with great fanfare.”

3. adverb

to or at the sixth position in a series or sequence

“The team won sixtieth place in the tournament, which was still a respectable finish.”