The prefix semi is commonly used in the English language to indicate partiality or incompleteness. It is derived from the Latin word “semi,” which means half. The addition of …

semi-, Pronouns a combining form borrowed from Latin, meaning "half,'' freely prefixed to English words of any origin, now sometimes with the senses "partially,'' "incompletely,'' "somewhat'': …

SEMI- definition: a combining form borrowed from Latin, meaning “half,” freely prefixed to English words of any origin, now sometimes with the senses “partially,” “incompletely,” “somewhat”. See …

Semi- is usually used to mean partially or half when talking about technical or scientific subjects, as well as math. When coining a word meaning half of something, English speakers will most …

(Definition of semi- from the Cambridge Learner's Dictionary © Cambridge University Press)

Definition of semi- prefix in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

semi-, prefix meanings, etymology, pronunciation and more in the Oxford English Dictionary

2 ENTRIES FOUND: semi (noun) semi- (prefix) semi- prefix Britannica Dictionary definition of SEMI- 1 : half

A: "Semi" means "half" and is derived from the Latin root semis. It is commonly used as a prefix in English to indicate something that is partial, incomplete, or split into two parts, such as …

2025年12月26日 · Etymology Borrowed from Latin semi- (“half”), from Proto-Indo-European *sēmi / *sēmi-. Cognate to English sam, and to hemi- (via Ancient Greek).