(typography) The adjustment of the horizontal space between selected pairs of glyphs in a typeface.
The act or process by which something is tracked.
In typography, kerning is the process of adjusting the spacing between characters in a proportional font, usually to achieve a visually pleasing result. Kerning adjusts the space between individual letterforms, while tracking (letter-spacing) adjusts spacing uniformly over a range of characters.
(typography) A consistent adjustment of space between individual letters; letterspacing.
(education) The division of pupils into separately taught groups by perceived ability level.
the pursuit (of a person or animal) by following tracks or marks they left behind