teacup /ˈtiː.kʌp/noun 2adjective 1forms 1 noun2 •A small cup, usually with a handle, commonly used for drinking tea; normally sits in a saucer as part of a tea set."There isn't wind enough to capsize a tea-cup in a gutter," said Rasmus, and shifted his chew of tobacco with a little black chalk pipe, while he looked around him on all sides. — 1886 •A unit of measure; a teacupful. adjective1 •Of an animal, smaller than average. formsteacups