Especially at restaurants, called when someone's food order is ready to be retrieved or served.

To summon for military duty. / (transitive) To place an order for (something).

(set theory, order theory) total order

(set theory, order theory) That is equipped with a total order, that is a subset of (the ground set of) a partially ordered set whose partial order is a total order with respect to said subset.

peace bond

(Philippines) Piecework, intermittent or emergency employment in local government units. / (loosely) Used other than figuratively or idiomatically: see job, order.

plural of order type

(set theory) In the context of sets equipped with an order (especially, the context of totally ordered sets), the characteristic of being a member of some equivalence class of such sets under the equivalence relation "existence of an order-preserving bijection".

(graphical user interface) The sequence in which a user can navigate from one control to the next by pressing the Tab key.

plural of tab order