noun, noun which may take the genitive case particle 'no', na-adjective
well done; excellent result; great job
Used to praise a result or performance that exceeds expectations. Often used as a standalone exclamation or with な/の to modify a noun.
Today's presentation was a great success.
For a first attempt at making a cake, it turned out really well.
Compound of 上 (じょう, 'upper, excellent') and 出来 (でき, 'result, outcome').