teacup Syllabification: (tea·cup)Pronunciation: /ˈtēˌkəp/Translate teacup | into French | into German | into Italian | into Spanish Definition of teacup noun a cup from which tea is drunk. an amount held by this, about 150 ml. Derivatives teacupfulPronunciation: /-ˌfo͝ol/ noun (plural teacupfuls)teacup in other Oxford dictionaries Definition of teacup in the British & World English dictionary