A theoretical line (physically or mentally) followed from a point of origin or towards a destination. May be relative (e.g. up, left, outbound, dorsal), geographical (e.g. north), rotational (e.g. clockwise), or with respect to an object or location (e.g. toward Boston).

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

present participle of direct

Third-person singular simple present indicative form of direct

The state or quality of being direct.

plural of directional

(physics, electrical engineering) A measure of the performance of an antenna compared to an isotropic antenna; the ratio of the maximum value of radiation intensity to the average radiation intensity.