〜位 follows a number to give a place in a ranking or competition.
Common collocations
Watch out
- ~位 is a rank in a result or ranking (一位 = first place); ~番 is a number in a sequence or order (一番, 三番目).
- The same kanji is read くらい / ぐらい when it means "about, approximately" (十分位); in that sense it is usually written in kana.