I. ˈse-mē also -ˌmī noun
( plural sem·is )
Etymology: short for semidetached
Date: 1912
chiefly British : a semidetached house
II. ˈse-ˌmī also -mē noun
( plural sem·is )
Date: 1942
: semitrailer
III. same as 2 noun
( plural sem·is )
Date: 1942
: semifinal — often used in plural