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.

Tesla Semi is a fully electric semi truck with active safety features, massive range and a spacious interior designed for maximum visibility.

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

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.

Dec 16, 2025 · Global sales of total semiconductor manufacturing equipment by original equipment manufacturers (OEMs) are forecast to reach a record high of $133 billion in 2025, growing 13.7% …