海绵

sponge (zoology) / sponge (piece of absorbent material, either natural or made from plastic etc) / foam rubber

surname Hai

ocean / sea / CL:個|个[ge4],片[pian4] / great number of people or things / (dialect) numerous

silk floss / continuous / soft / weak / mild-mannered (dialect)

old variant of 綿|绵[mian2] / cotton

erectile tissue (genital) / corpus cavernosum

bovine spongiform encephalopathy, BSE / mad cow disease

spongy

SpongeBob SquarePants (US TV animated series, 1999-)