First

First can be:

An original or first instance having historical significance, for example Tom Thumb - the first US-built locomotive.
First Post, is an phenomenon on Internet discussion groups where participants strive to be the first person to "post" a comment to a new article or discussion thread.
The ordinal form of the number one
The trade name of FirstGroup plc, a transport company operating in United Kingdom, Ireland and North America; and based in Aberdeen, Scotland
FIRST, a science and technology competition founded by Dean Kamen
Ruth First (1925-1982), a leading anti-apartheid South African campaigner.
In the British undergraduate degree classification system, first is the highest final grade of achievement ("Honours") as an undergraduate. Equivalent to the American summa cum laude distinction.
First is a 1978 LP album released by Jazz artist John Scofield
First (song) by Lindsay Lohan
First is Denise Ho's 2001 debut album.

See also