膨張 （ボウチョウ） expansion, swelling, increase, growth

膨大 （ボウダイ） huge, vast, enormous, colossal, extensive, large, swelling, expansion

海膨 （カイボウ） rise

膨らむ （ふくらむ） to expand, to swell (out), to get big, to become inflated

膨れる （ふくれる） to swell (out), to expand, to be inflated, to distend, to bulge, to get cross, to get sulky, to pout