| konkomitant | concomitant |
| Konkavität | concavity |
| Konformität | conformity |
| konkordant | concordant |
| Konvexität | convexity |
| Konizität | conicity |
| Konkordanz | concordance |
| Konkordat | concordat |
| Konsonant | consonant |
| konstant | constant constantly |
| konziliant | conciliatory |
| Komödiant | comedian |
| Kondiment | condiment |
| Kondominium | condominium |
| Konformist | conformist |
| Konkrement | calculus |
| Kontratanz | contra |
| Ikonizität | iconicity |
| Konglomerat | conglomerate |
| Konkani | Konkani |