Meaning of SEMI- in English

SEMI-

semi- /semi/ BrE AmE prefix

[ Language: Latin ]

1 . exactly half:

a semicircle

2 . partly but not completely:

in the semi-darkness

semi-literate people

3 . happening, appearing etc twice in a particular period:

a semi-weekly visit

a semi-annual publication

⇨ ↑ bi-

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