Question: word has z and k?
Answer: kibbitz, kibbitzed, kibbitzer, kibbitzers, kibbitzes, kibbitzing, kibbutz, kibbutzes, kibbutzim, kibbutznik, kibbutzniks, kibitz, kibitzed, kibitzer, kibitzers, kibitzes, kibitzing, kilohertz, kilohertzes, kingsize, kirghiz. kjeldahlization, kjeldahlize.