Semi- is a numerical prefix meaning "half". The prefix alone is often used as an abbreviation when the rest of the word (the thing which half of is being described) is clear from context.

Semi - is a combining form used like a prefix meaning “half.” In some instances, it is used figuratively to mean "partially," "incompletely," or "somewhat."

The meaning of SEMI is semifinal —often used in plural. How to use semi in a sentence.

SEMI Is the global industry association representing the electronics manufacturing supply chain, connecting over 2,000 member companies and 1.3 million professionals worldwide.

semi- a combining form meaning “half” (semiannual), “partially,” “somewhat” (semiautomatic; semidetached; semiformal).

Semi- combines with adjectives and nouns to form other adjectives and nouns that describe someone or something as being partly, but not completely, in a particular state.

semi-skilled used to describe something that happens twice within a particular time: a semi-weekly appointment (Definition of semi from the Cambridge Business English Dictionary © …

Dec 29, 2025 · Adverb [edit] semi (not comparable) (informal) Somewhat; to some extent. quotations

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

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