One of four equal parts of a single thing (sometimes referred to as a fourth in US English).
A 1/4 (¼) part of many other things, including the year, the cycle of the moon, or a city (i.e. the French Quarter of New Orleans). A quarter is also an academic period like a semester, but shorter (approximately 10 weeks instead of 15).
Requesting a pardon, specifically not killing a defeated opponent.
in heraldry, unless specified as a quarter sinister or sinister quarter, an ordinary occupying the dexter chief (viewer's upper left) quarter of the "field" of a shield, or, if the field is "quarterly" (divided into four by cross-like lines), one of the quarters thus formed
as a verb, to quarter means to divide in to quarters, such as when slaughtering an animal for food
To print a one-quarter ¼ symbol in HTML, ¼ can be used. Likewise, a three-quarters ¾ symbol is ¾.