S1P3A1C3I1O1U1S1N1E1S1S1E1S1
18 points
SPACIOUSNESSES is validvalid
SPACIOUSNESS, the quality of being spacious [n]
SPACIOUSNESS, the state of being spacious [n]
SPACIOUSNESS, the quality of being spacious [n]
SPACIOUSNESS, the state of being spacious [n]