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

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 meaning: 1 : semifinal usually plural; 2 : a short, heavy truck that has a long trailer attached to the back and that is used to move goods semitrailer

semi noun [C] (VEHICLE) US (UK articulated lorry) a large truck for carrying goods, consisting of a strong front part that pulls a large box-like container behind it

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.

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

SEMI Standards form the foundation for innovation in the microelectronics industry. The SEMI Standards process has been used to create more than 1000 industry approved standards and …

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

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