(bound form) an earthenware jar or bottle with a small mouth and a large belly, often used in ancient times for holding liquids like wine; something jar-shaped as in 罂粟 yīng​sù

[suffix] used to form nouns from noun, verb, or adjective roots

(bound form) any of several broad-leaved trees including the Chinese parasol tree 梧桐 wú​tóng, the empress tree 泡桐 pāo​tóng, and the tung oil tree 油桐 yóu​tóng