IPA: /kəˈmoʊdiəsnəs/
KK: /kəˈmoʊdʒənəs/
The quality of being spacious and comfortable, providing plenty of room.
The commodiousness of the new apartment made it a perfect choice for the family.
Commodiousness → It is formed from "commodious" (from Latin "commodus", meaning suitable or convenient) and the suffix "-ness" (meaning the state or quality of). The word "commodiousness" refers to the quality of being spacious and comfortable or convenient.
Think of 'suitable' ('commodus') and 'the state of' ('-ness') to remember that 'commodiousness' means the quality of being spacious and comfortable.