piece de resistance

English Thesaurus

1. the outstanding item (the prize piece or main exhibit) in a collection (noun.artifact)

hypernym	:	curio, curiosity, oddity, oddment, peculiarity, rarity,
definition	:	something unusual -- perhaps worthy of collecting (noun.artifact)

hyponym	:	rariora,
definition	:	(plural) rare collector's items (noun.artifact)

2. the most important dish of a meal (noun.food)

hypernym	:	dish,
definition	:	a particular item of prepared food (noun.food)