Definitionen
1.AdjectiveIndicating position in a sequence.""Three" is a cardinal number, while "third" is the corresponding ordinal number."
2.AdjectivePertaining to a taxon at the rank of order.
3.AdjectiveIntercardinal.
4.NounAn ordinal number such as first, second and third.
5.NounA book used in the ordination of Anglican ministers, or in certain Roman Catholic services
6.NounA unique serial number assigned to a satoshi based on its position in the blockchain.