IPA: //ˈpæsɪdʒwɜrk//
KK: /ˈpæsɪdʒwɜrk/
A part of a musical piece that allows a musician to show off their skill, often involving fast notes and patterns that are not central to the main theme.
The pianist impressed the audience with her intricate passagework during the performance.
The word 'passagework' is formed from 'passage' (from Old French *passage*, meaning a way or path) and 'work' (from Old English *weorc*, meaning labor or effort). The term refers to the work or effort involved in creating or navigating a passage or pathway.
Think of a 'pathway' ('passage') that requires 'effort' ('work') to navigate or create — that's what 'passagework' means.
No commonly confused words.