- Kata
- katabasis
- katabatic
- katabolic
- katabolism
- katamorphism
- katayama disease
- Kathleen Battle
- Katie Price
- katzenjammer
- Kaufmanns method
- KAYMILE AIR
- kayo
- kayoed
- kayoing
- kayos
- Kaysers disease
- Kazal Pancreatic Trypsin Inhibitor
- kazillion
- kDa RAP
- kDa Receptor Associated ProteinBGVA
- Kearns Sayre Shy Daroff Syndrome
- KeatingHarts method
- kedani disease
- Kedge
- kedges
- keel
- keel over
- Keeley cure
- keen
- keen edged
- keen on
- keen witted
- keen-edged
- keen-sighted
- Keen-witted
- keened
- keenedged
- keening
- keenings