tracking

1. The act or process by which something is tracked. (countable, uncountable)
2. A consistent adjustment of space between individual letters; letterspacing. (countable, uncountable)
3. The division of pupils into separately taught groups by perceived ability level. (countable, uncountable)
4. The synchronization of two or more signals. (countable, uncountable)
5. The formation of conductive paths on the surface of an insulating material due to electrical discharges. (countable, uncountable)

الجمع trackings