(1) To arrange in order.
(2) A database object that is independent of any one table that automatically generates unique key values based on initial user specifications.
(3) A sequentially ordered flat collection.
(4) In the XQuery and XPath data model, an ordered collection of zero or more items. See also XQuery and XPath data model.
(5) In fibre-channel technology, a group of related frames transmitted in the same direction between two node ports (N_ports).