# Online Encyclopedia

# Measure

**Measure** can mean:

- To perform a measurement.
- In mathematics, a
**measure**is a way to assign non-negative real numbers to subsets of a given set, in order to "measure their sizes or probabilities". See measure (mathematics) for a treatment of the concept. - In music, a
**measure**is a unit of time in Western music usually equalling the metric unit length. It represents a regular grouping of beats, a meter, as indicated in musical notation by the time signature. Measures are also called**bars**, since measures are separated by vertical bars (called**bar lines**) in musical notation. - In civics, a
**measure**is a legislative bill, a ballot measure, or enactment. - In war, a
**measure**is some tactic used by a friend or a foe; an opposing tactic is called a countermeasure; an opposing tactic to a countermeasure can be called a counter countermeasure, etc.

Last updated: 02-03-2005 12:49:59

Last updated: 02-26-2005 12:57:45