Ключевые слова: abstract, ahead, alternative, arrow, arrowhead, center, choice, color, control, cross, different, direction, directional, down, east, element, escape, four, icon, illustration, image, indicator, management, motion, navigation, navigational, navigator, north, orientation, outline, outside, pointer, process, road, set, shape, sign, signage, south, straight, symbol, traffic, travel, ui, up, way, web, west, white,