From Wiktionary, the free dictionary
Synthesizer + -i, from English synthesizer.
Synthi m (strong, genitive Synthis, plural Synthis)
- (slang) synth, synthesizer
Declension of Synthi [masculine, strong]
- “Synthi” in Duden online
- “Synthi” in Digitales Wörterbuch der deutschen Sprache