Meaning of SEMI in English

SEMI

sem ‧ i /ˈsemi/ BrE AmE noun ( plural semis ) [countable]

[ Sense 1: Date: 1900-2000 ; Origin: semi-detached ]

[ Sense 2: Date: 1900-2000 ; Origin: semi-final ]

[ Sense 3: Date: 1900-2000 ; Origin: semi-trailer ]

1 . British English informal a ↑ semi-detached house:

a three-bedroomed semi

2 . informal a ↑ semi-final

3 . American English a very large heavy truck consisting of two connected parts, which carries goods over long distances SYN articulated lorry British English

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.