(set theory) A set having a specified total order.

plural of set-top box

plural of key set identifier

(transitive, idiomatic) To desire with intensity and commitment, to earnestly long for.

To disembark.

Alternative form of game, set, match

(transitive with on) To give one's close attention to, especially as a goal, objective, or other object of special interest.

(set theory) An early and influential axiomatisation of set theory.

(set theory) The axiom that the power set of any set exists and is a valid set, which appears in the standard axiomatisation of set theory, ZFC.

The general field of topology, not restricting attention to specific classes of spaces, and not using algebraic topology.