膨大海 péngdàhǎi malva nut Origin Definitions Defs Strokes Stroke Words Sentences Sents 膨 péng nounverb to expand (bound form) to expand; to swell; to inflate大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult海 hǎi noun sea ocean or sea; large bodies of water including salt lakes or large inland lakes