sponge
/ˈspənj/
noun
an elastic porous mass of interlacing horny fibers that forms the internal skeleton of various marine animals (phylum Porifera) and is able when wetted to absorb water
a piece of sponge (as for scrubbing)
a porous rubber or cellulose product used similarly to a sponge
verb
to cleanse, wipe, or moisten with or as if with a sponge
to erase or destroy with or as if with a sponge —often used with out
to get by sponging on another
noun
a light cake made without shortening