bakerybikingbakinghikingjokinglikingmakingpokingrakingtakingwaking
walkedwalkerweakenweakerweaklyweeklywickedwinkedworkedworker
skinny, skimpy
Kicks begins with "k" and the 4th letter is "k".
Kudos is a five-letter word for award, but it starts with k.
bakerybikingbakinghikingjokinglikingmakingpokingrakingtakingwaking
koala
vodka
Upkeep
Killer
kilter
walkedwalkerweakenweakerweaklyweeklywickedwinkedworkedworker
skinny, skimpy
kitten
kumala or kumata
arrack
Knot.