semi-
German, prefix/ˈzeːmi/
semi- is spelled S-E-M-I (4 letters). Semi- is a German prefix meaning “semi-, half-” (English Wiktionary, September 2026). The German Wiktionary defines it as “halb, teilweise”.
What does semi- mean in English?
prefix
- 1
semi-, half-
semi- + automatisch (“automatic”) → semiautomatisch (“semi-automatic”)
- 2
colloquialslangnot very, hardly
semi- + gut (“good”) → semigut (“not very good, rather bad”)
Source: English Wiktionary, German section, dump of September 2, 2026 (CC BY-SA 4.0).
How German dictionaries define it
prefix: 1. halb, teilweise
The definition in the German Wiktionary, in German.
Source: German Wiktionary, dump of September 1, 2026 (CC BY-SA 4.0), through kaikki.org.
How do you pronounce semi-?
- Germany /ˈzeːmi/
- Austria /ˈseːmi/
- [ˈzemi]
Sources: English Wiktionary, German Wiktionary (dumps of September 2, 2026 and September 1, 2026); recordings from Wikimedia Commons.
English words that translate to semi-
Source: the translation tables of the English Wiktionary, dump of September 2, 2026.