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.

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 represents the electronics manufacturing and design supply chain, connecting over 2,600 member companies and 1.3 million professionals worldwide.

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 examples …

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 © Cambridge …

23 hours ago · PARK RIDGE, Ill. — A rollover crash involving a semi along I-294 is causing some backups for drivers in the northwest suburbs on Thursday morning. According to Illinois State Police …

Dec 14, 2022 · SEMI is an industry association that has 2,400 member companies in the semiconductor and electronics design and manufacturing industry and supply chain. Founded in 1970, the …

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

Sep 25, 2024 · Despite the use of "semi" in the name, semi-trucks are typically much larger than straight trucks and can carry heftier loads, as the trailers in the back give them increased support options.