“YAPOCK” is a valid word. — 17 points Scrabble

okayan endorsement
copya reproduction of a written record (e.g. of a legal or school record)
packa large indefinite number
kayoa blow that renders the opponent unconscious
capothe head of a branch of an organized crime syndicate
yacknoisy talk
pocka pustule in an eruptive disease
pokya correctional institution used to detain persons who are in the lawful custody of the government (either accused persons awaiting trial or convicted persons serving a sentence)
yock
caky

paysomething that remunerates
copuncomplimentary terms for a policeman
capa tight-fitting headdress
kay
oakthe hard durable wood of any oak; used especially for furniture and flooring
yaknoisy talk
coyaffectedly modest or shy especially in a playful or provocative way
yapinformal terms for the mouth
paccommittee formed by a special-interest group to raise money for their favorite political candidates
okaa Turkish unit of weight equal to about 2.75 pounds
caya coral reef off the southern coast of Florida
koa
ocaSouth American wood sorrel cultivated for its edible tubers
kop
yok
pya100 pyas equal 1 kyat in Myanmar

YAPOCK