The quality or state of being soft and able to absorb or hold liquid, like a sponge. The sponginess of the cake made it incredibly moist and delicious.
The characteristic of being porous and compressible, often referring to materials or textures. The sponginess of the mattress provided excellent support and comfort.
A condition in which something is soft and springy, often used in a medical or biological context. The doctor noted the sponginess of the tissue during the examination.