There are 20 words that end with 'ko'.
mako | bucko | bunko |
dekko | gecko | iroko |
jocko | pinko | shako |
sicko | socko | wacko |
gingko | jingko | shacko |
stinko | whacko | chechako |
pachinko | cheechako | |
Note: These 20 words that end with 'ko' are found from the USA & Canada version of the tournament Scrabble word list.