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.

Nov 18, 2025 · SEMI Europe commends the European Commission and member states for their commitment to building a competitive semiconductor ecosystem. However, as the Chips Act …

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

Despite what you may think, the "semi" in “semi-truck” actually refers to the trailer, not the truck itself. In fact, the name “semi-truck” is just a shortened version of “semi-trailer truck.”

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 © …

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

Sep 25, 2024 · It's a "semi" trailer because it doesn't have its own engine, front axles and wheels, transmission, and so on. Thus, "semi-truck" is a nickname for a truck that carries a semi-trailer.

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

A semi is a large truck that is made in two separate sections, a tractor and a trailer, which are joined together by metal bars.

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