sponge

Sense 1 noun

a porous mass of interlacing fibers that forms the internal skeleton of various marine animals and usable to absorb water or any porous rubber or cellulose product similarly used

Sense 2 verb

wipe with a sponge, so as to clean or moisten

Sense 3 noun

someone able to acquire new knowledge and skills rapidly and easily

she soaks up foreign languages like a sponge

Sense 4 verb

ask for and get free; be a parasite

Sense 5 noun

a follower who hangs around a host (without benefit to the host) in hope of gain or advantage

Sense 6 verb

erase with a sponge; as of words on a blackboard

Sense 7 noun

primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies

Sense 8 verb

soak up with a sponge

Sense 9 verb

gather sponges, in the ocean