A Direction expresses the orientation of a stationary figure or of a figure’s motion. Prototypical markers1 are away and back; up and down; off; and out, provided that no specific Source or Goal is salient:
Locus↝Direction is used for expressions of static distance between two points:
This also applies to distances measured by travel time (the amount of time is taken to be metonymic for the physical distance):
Compare Extent, which is the length of a path of motion or the amount of change.
Known variously as adverbs, particles, and intransitive prepositions. ↩
How motion or an object is aimed/oriented.