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.

Troopers investigate a fatal crash involving a semi-truck and truck-tractor on I-80 in Tinley Park, causing westbound lane closures.

Sep 15, 2024 · Troopers responded to the scene for the report of a fatal traffic crash involving a semi and a truck-tractor semi-trailer. Two people were pronounced dead.

Jun 9, 2025 · Timothy Fogt was hit west of Oak Park Avenue. He had been reported missing after leaving Credit Union 1 Amphitheatre on Saturday at around 11 p.m. Fogt was struck by the semi …

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

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

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

semi- 1. A prefix that means "half," as in semicircle, half a circle. 2. A prefix that means "partly," "somewhat," or "less than fully," as in semiconscious, partly conscious.

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 connects more than 2,500 member companies and 1.3 million professionals worldwide to advance the technology and business of electronics design and manufacturing.