Real Dictionary

VAR in American English
visual-aural (radio) range

var in American English 1
the unit used to measure the apparent power in an alternating-current circuit, equal to one volt-ampere or one watt

var in American English 2
variable

var in British English
abbreviation for: video assistant referee
noun: a department of SE France, in Provence-Alpes-Côte-d'Azur region. Capital: Toulon. Pop: 946 305 (2003 est). Area: 6023 sq km (2349 sq miles)
noun: a unit of reactive power of an alternating current, equal to the product of the current measured in amperes and the voltage measured in volts

var. in American English
variable

var. in British English
abbreviation for: variable