| Kapitulantentum | defeatism |
| Querulantentum | mischief |
| Kapitulation | capitulation surrender |
| kapitulieren | capitulate |
| Kapitalistin | capitalist |
| Kapitälchen | small caps |
| kaputtlachen | laugh one’s head off |
| Capitanium | Capitanian |
| Papiamentu | Papiamento |
| Atlantikum | Atlantic |
| Kurfürstentum | electorate |
| Mäzenatentum | Maecenasship patronage |
| Katholikentum | catholicity |
| Kapholländer | Afrikaner |
| Kapholländerin | Afrikaner |
| Kapillare | capillary |
| Kapitalausstattung | capitalisation |
| Kapitalmarkt | capital market |
| Kaplanin | chaplain |
| Rekapitulation | recapitulation |