Adjective, Abbreviation:

An abbreviation of "version 2.0," it is a naming convention most often employed ironically by programmers to denote shipping commercial software packages more accurately described by "v1" or even "beta."

The V-2 was a rocket developed by the Germans during WWII.

It was an unmanned, ballistic missile guided by an advanced gyroscopic system that sent signals to aerodynamic steering tabs on the fins and vanes in the exhaust. The V2 carried an explosive warhead (Amatol Fp60/40) weighing approximately 738 kg (1 ton) that was capable of flattening a city block. It was first fired operationally on Sept. 8, 1944 against Paris then London.

1) Short for "version two;" used in reference to electronic data; includes software, web sites, etc.
2) Recently: a synonym for redux; anything that is supposedly better than its predecessor.

(V-{subscript}2)

Universally known as a peace sign thrown up and to the right.

A symbol of representation among the peers to to leave the thought in there minds......"Oh shit its that V2 Chick.......What now...."

Short range ballistic missile. Developed in Germany By Von Braun.

First operational liquid fuel rocket. Developed by Germany in a huge development program as large in proportion to the German gross national product as the Manahattan atom bomb project was in America.

After the war captured German V-2's were launched by the British, Americans, and Russians. Personnel and technology from the V-2 formed the basis for subsequent rocketry developments throughout the world.