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.

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 membership opens the door to new opportunities and connections that grow your business. Only through membership can you take full advantage of SEMI programs, initiatives, and staff support that …

Dec 12, 2025 · Adverb [edit] semi (not comparable) (informal) Somewhat; to some extent. quotations

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.

2 days ago · 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% …

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 …

I had a new participant in the S10 TF telecon this week. After the telecon, I went looking to confirm that this person is a SEMI Standards Program member ...

1 day ago · Alphawave Semi is a global leader in high-speed wired connectivity delivering custom silicon, connectivity products and chiplets that drive faster, more reliable data transfer with higher …