First

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First can be:

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

See also