n Used in marking scheme: α, β, γ or α+, α, α-, β etc.
n (finance) Average sensitivity of a security's price to overall securities market prices.
n (computing) The phase of development after alpha testing and before launch, in which software, while not complete, has been released to potential users for testing.
n (computing) A computer program in such phase; a preliminary version.
n (climbing) Information about a route which may aid someone in climbing it.