retry vs retrial

retry is not a noun while retrial is a noun.

Word	Noun	Adjective	Verb	Adverb
retry	No	No	Yes	No
retrial	Yes	No	No	No

retry (noun)	retrial (noun)
	a new trial in which issues already litigated and to which the court has already rendered a verdict or decision are reexamined by the same court; occurs when the initial trial is found to have been improper or unfair due to procedural errors

retry (verb)	retrial (verb)
hear or try a court case anew