decorationIt's time to put away the Christmas decorations.
ornamentationformalThe artifacts included a gold bracelet with beaded ornamentation.
adornmentShe wore no adornments except for a small watch.
embellishmentThe building is plain, avoiding all unnecessary embellishments.
trimmingI want a plain black cardigan with no trimmings.
trimI like that tan sofa with the bright blue trim.
ornamentHer shelves are crammed with little ornaments she's collected on her travels.
tchotchkeUSinformalI love collecting those little promotional tchotchkes you get at conferences.