| curvarsi | senken |
| curvarsi su | bücken |
| curvato | gebogen |
| curvatura | Krümmung |
| Curvatura gaussiana | Gaußsche Krümmung |
| Curvatura media | Mittlere Krümmung |
| Curvatura principale | Hauptkrümmung |
| Curve di indifferenza | Indifferenzkurve |
| Curvità | Krümmung |
| curvo | ausgehöhlt |
| Curzio Malaparte | Curzio Malaparte |
| Curzola | Korčula |
| Cusance | Cusance |
| cuscinetto | Lager |
| Cuscinetto a rullini | Nadellager |
| cuscinetto a sfera | Kugellager |
| cuscinetto a sfere | Kugellager |
| cuscino | Kissen |
| cuscino della suocera | Schwiegermuttersitz |
| Cusco | Cusco |
| cuscus | Couscous |
| cuscussù | Couscous |
| cuscuta | Seide |
| Cusio | Cusio |
| Cuspidale | Spitz |
| Cuspidat | Spitz |
| custode | Wache |
| custodia | Aufbewahrung |
| Custodia cautelare | Schutzhaft |
| custodia preventiva | Untersuchungshaft |
| custodia protettiva | Schutzgewahrsam |
| custodire | schützen |
| custodire gelosamente | hegen |
| Customer relationship management | Kundenbeziehungsmanagement |
| customizzare | speziell anfertigen |
| Cusy | Cusy |
| CUT | Cut |
| Cut-the-knot | Cut-the-knot |
| cute | Haut |
| cute anserina | Gänsehaut |
| Cuthred di Wessex | Cuthred |
| cuticola | Epidermis |
| Cutie Honey | Cutie Honey |
| cutrettola | Bachstelze |
| cutter | Kutter |
| Cutting Crew | Cutting Crew |
| Cuttura | Cuttura |
| Cutty Sark | Cutty Sark |
| Cuvetta | Küvette |
| Cuvette | Cuvette |
| Cuvette-Ouest | Cuvette-Ouest |
| Cuvier | Cuvier |
| Cuvieronius | Cuvieronius |
| Cuvry | Cuvry |
| Cuxhaven | Cuxhaven |
| CUY | Cuy |
| Cuzance | Cusance |
| Cuzdrioara | Cuzdrioara |
| CV | CV |
| Cvicino | BY |
| CVO | Cvo |
| CW | CW |
| Cwichelm di Wessex | Cwichelm |
| CX | CX |
| CY | CY |
| Cyanobacteria | Cyanobakterien |
| cyanocitta cristata | Blauhäher |
| Cyanocitta stelleri | Diademhäher |
| Cyanopsitta spixii | Spix-Ara |
| Cybercafe | Internetcafé |
| Cybercultura | Netzkultur |
| Cyberpunk | Cyberpunk |
| Cybersesso | Cybersex |
| Cybersquatting | Cybersquatting |
| Cyberwarfare | Cyberwar |
| Cybill Shepherd | Cybill Shepherd |
| cyborg | Cyborg |
| Cycadaceae | Cycas |
| Cycadales | Palmfarne |
| Cycadophyta | Palmfarne |
| Cycas | Cycas |
| Cycas revoluta | Japanischer Palmfarn |
| Cyclamen | Alpenveilchen |
| Cyclamen persicum | Zimmer-Alpenveilchen |
| Cyclamen purpurascens | Europäisches Alpenveilchen |
| Cyclamen repandum | Geschweiftblättriges Alpenveilchen |
| cyclette | Hometrainer |
