(physics) An electric current that always flows in the same direction but may differ in intensity over time. / (physics) A constant electric current.

(graph theory) An edge of a directed graph.

(graph theory) A graph in which the edges are ordered pairs, so that, if the edge (a, b) is in the graph, the edge (b, a) need not be in the graph and is distinct from (a, b) if it is.

That which directs; serving to direct, indicate, or guide. / (grammar) Relating to the directive case.

An instruction or guideline that indicates how to perform an action or reach a goal.

The ability to make an external telephone call to an internal extension within an organization.

Indicating direction. / Of or relating to guidance or help.

Something that indicates direction, such as a vehicle's turn signal.

In a manner emphasizing one's point of view. / (graph theory) Having the properties of a directed graph. / (set theory) Having the properties of a directed set.

simple past tense and past participle of direct