Kill, Kiss, Spontaniously combust..... oh wait...
Kelp
Keester
kick
A knapsack?
khakis
Knife
Good ol "KOOL-AID"
* kilt * knee socks * khaki pants * knee pads * kerchief
yes there is a film beginning with k it is called kramer v kramer
Kale, Kielbasa, Kiwi, Knackwurst/Knockwurst, Kohlrabi, Kumquat to name a few...
A two word thing beginning with the letter k is kami kazi.
Kia Kaiser K-car