tryout vs field trial

tryout and field trial both are nouns.

Word	Noun	Adjective	Verb	Adverb
tryout	Yes	No	No	No
field trial	Yes	No	No	No

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

tryout: trying something to find out about it
field trial: a test of the performance of some new product under the conditions in which it will be used

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

tryout (noun)	field trial (noun)
a test of the suitability of a performer	a test of young hunting dogs to determine their skill in pointing and retrieving
trying something to find out about it	a test of the performance of some new product under the conditions in which it will be used
	a contest between gun dogs to determine their proficiency in pointing and retrieving