| korrelieren | correlate |
| korrodieren | corrode |
| korrigieren | correct adjust |
| Kordilleren | American Cordillera |
| korrumpieren | corrupt |
| arretieren | arrest stop lock |
| Kannelieren | fluting |
| kannelieren | flute |
| koagulieren | coagulate |
| formulieren | couch frame put word |
| koalieren | form a coalition |
| kompilieren | compile |
| kondolieren | condole |
| kopulieren | copulate make a splice graft join with a copula |
| konferieren | confer |
| konvenieren | be suitable |
| konzedieren | concede admit |
| kooperieren | co-operate |
| kreieren | create |
| kremieren | cremate |