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 …

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

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.

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Semi- is usually used to mean partially or half when talking about technical or scientific subjects, as well as math. When coining a word meaning half of something, English speakers will most often use the …

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 …

Mar 26, 2025 · The Semi 101 series is a beginner’s guide to understanding microchips and the semiconductor industry – from components to processes and everything in between. This guide is …

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.

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