[noun] a porous mass of interlacing fibers the forms the internal skeleton of various marine animals and usable to absorb water or any porous rubber or cellulose product similarly used
[noun] someone able to acquire new knowledge and skills rapidly and easily; "she soaks up foreign languages like a sponge" Synonyms: quick study
[noun] a follower who hangs around a host (without benefit to the host) in hope of gain or advantage Synonyms: leech, parasite
[noun] primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies Synonyms: poriferan, parazoan
[verb] wipe with a sponge, so as to clean or moisten
[verb] ask for and get free; be a parasite Synonyms: mooch, bum, cadge, grub
[verb] erase with a sponge; as of words on a blackboard
