trend; course of action; directionality; directivity; directional; vectorial
direction of movement (motion); direction of travel (esp. train)
the opposite direction; the other way
wrong direction; different direction (from what one expected)
(person with) no sense of direction; poor sense of locality
sense of orientation; sense of direction
one direction; unidirectional; non-interactive
lateral direction; horizontal direction; transverse direction; landscape orientation
two-way; bidirectional; interactive
longitudinal direction; vertical direction; portrait orientation
directing; orienting; orientating; guiding; aligning
two directions; both directions; two-way; bidirectional
directional button; button with arrow(s) (on keypad, game controller, etc.)
direction indicator; traffic indicator; turn signal
longer direction; longitudinal direction
character writing direction
forward voltage (e.g. of a semiconductor)
forward voltage drop (e.g. in a semiconductor)
perpendicular direction; lengthwise direction