- Knowledge Noun Adj
- Knowledge base Noun
- Knowledgeability Noun
- Knowledgeableness Noun
- Knownothing Noun
- Knuckle Noun Verb Adj
- Knucklebone Noun Adj
- Knucklebones Noun Adj
- Knuckleduster Noun Adj
- Knucklehead Noun Adj
- Knuckler Noun
- Knuckling Noun Pres. Participle
- Knucks Noun
- Knur Noun Verb Adj
- Knurl Noun Verb
- Knurling Noun Adj
- Knurr Noun
- Koala Noun Adj
- Koan Noun Adj
- Kobe Noun Pnoun Adj
- Kobellite Noun Adj
- Koblenz Noun Pnoun
- Kobo Noun
- Kobold Noun Adj
- Kochia Noun
- Kodiak Noun Pnoun Adj
- Kohl Noun Adj Verb Pnoun
- Kohlrabi Noun Adj
- Koine Noun Adj
- Kokanee Noun Pnoun
- Koksharovite Noun Adj
- Kola Noun Adj Pnoun
- Kolinskies Noun
- Kolinsky Noun Adj
- Kolkhoz Noun Adj
- Kolkhoznik Noun Adj
- Kombucha Noun Adj
- Komodo Noun Pnoun Adj
- Komondor Noun Adj
- Komsomol Noun Pnoun Adj
- Kong Noun Pnoun
- Kongsbergite Noun Adj
- Konimeter Noun Adj
- Koninckite Noun Adj
- Koodoo Noun Adj
- Kook Noun Verb Adj
- Kookaburra Noun Adj
- Kookieness Noun
- Kookiness Noun
- Kopeck Noun Adj
- Kopek Noun Adj
- Kopje Noun Adj
- Koradji Noun Adj
- Koran Noun Pnoun
- Korea Noun Pnoun
- Korean Adj Noun
- Kornerupine Noun Adj
- Korsakoff's Noun Adj
- Koruna Noun Adj
- Korunas Noun