IPA: /ˌvɒl.jʊˈmɪ.nə.sɪ.ti/
KK: /vɑːˌluːmɪˈnɑːsɪti/
The quality of being large in size or amount; having a lot of volume.
The voluminosity of the package made it difficult to carry.
Voluminosity → It is formed from "volumen" (from Latin, meaning a roll or scroll) and the suffix "-osity" (meaning the quality of being). The word "voluminosity" refers to the quality of being voluminous or having a large volume.
Think of a 'roll' or 'scroll' ('volumen') that has a lot of 'quality' or 'fullness' ('-osity') — this helps you remember that voluminosity means having a large volume.