tryout vs alpha test

tryout and alpha test both are nouns.

Word	Noun	Adjective	Verb	Adverb
tryout	Yes	No	No	No
alpha test	Yes	No	No	No

As nouns, alpha test is a hyponym of tryout; that is, alpha test is a word with a more specific, narrower meaning than tryout:

tryout: trying something to find out about it
alpha test: (computer science) a first test of an experimental product (such as computer software) carried out by the developer

Other hyponyms of tryout include field test, field trial, beta test, road test, trial balloon.

tryout (noun)	alpha test (noun)
a test of the suitability of a performer	(computer science) a first test of an experimental product (such as computer software) carried out by the developer
trying something to find out about it