Year 2 (II) was a common year starting on Sunday or Monday (link will display the full calendar) of the Julian calendar (the sources differ, see leap year error for further information) and a common year starting on Sunday of the proleptic Julian calendar. At the time, it was known as the Year of the Consulship of Vinicius and Varus (or, less frequently, year 755 Ab urbe condita). The denomination 2 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.

(2) is the nineteenth studio album by Australian pop singer Olivia Newton-John, released on 12 November 2002 in Australia. A duets album, the majority of tracks are with Australian artists, along with two American performers (Richard Marx and Michael McDonald). The Peter Allen and Johnny O'Keefe duets are built around archive recordings, with new vocals added by Newton-John.

2 and two may mean:

• 2 (number), a number, numeral, and glyph
• 2, the year 2 AD
• 2 BC, the year 2 BC

2 (Two; ) is a number, numeral, and glyph. It is the natural number following 1 and preceding 3.

.2 Network (pronounced Dot-Two Network) was the name of a planned television network designed for digital television subchannels (hence the ".2") owned by Guardian Enterprise Group. Announced in 2008, the network never ended up going to air due to financial and technical difficulties and it is assumed that it will never launch.

2. is the ordinal form of the number two in a number of European languages.

The Bhopal disaster, also referred to as the Bhopal gas tragedy, was a gas leak incident in India, considered the world's worst industrial disaster.

A coxless pair is a rowing boat used in the sport of competitive rowing. It is designed for two rowers, who propel the boat with sweep oars.

RTP2 is the second television channel of Rádio e Televisão de Portugal, the Portuguese public broadcasting corporation. Commonly referred as the "Second Channel", or simply "Dois" (Portuguese for two), this historically state-run television channel started its regular broadcasting on December 25, 1968. Nowadays, RTP2 is a public service, advertising-free channel that serves as an alternative to the mainstream channel of RTP, RTP1.

In mathematics, a square is the result of multiplying a number by itself. The verb "to square" is used to denote this operation. Squaring is the same as raising to the power 2, and is denoted by a superscript 2; for instance, the square of 3 may be written as 3², which is the number 9. In some cases when superscripts are not available, as for instance in programming languages or plain text files, the notations <kbd>x^2</kbd> or <kbd>x**2</kbd> may be used in place of <kbd>x²</kbd>.

Unicode has subscripted and superscripted versions of a number of characters including a full set of arabic numerals. These characters allow any polynomial,  chemical and certain other equations to be represented in plain text without using any form of markup like HTML or TeX.