| Kosewort | term of endearment |
| Koseform | affectionate form familiar form |
| Modewort | buzzword |
| Codewort | code word |
| Kostenart | cost element |
| Wiewort | adjective |
| Lagewort | supine preposition |
| Kennwort | box number cipher password code name |
| Kofferwort | portmanteau word portmanteau |
| Kunstwort | made-up word term |
| Kurzwort | clipping stump word |
| Passwort | password |
| Vorwort | preface foreword preposition pronoun |
| Komfort | comfort |
| Kosekans | cosecant |
| Kosel | pig |
| Kosename | pet name term of endearment |
| Kosmos | cosmos |
| Kosovare | Kosovan |
| Kosovo | Kosovo |