“COQUINA” is a valid word. — 18 points Scrabble

quoinexpandable metal or wooden wedge used by printers to lock up a form within a chase
uncia

coina flat metal piece (usually a disc) used as money
ciaoan acknowledgment that can be used to say hello or goodbye (aloha is Hawaiian and ciao is Italian)
cain(Old Testament) Cain and Abel were the first children of Adam and Eve born after the Fall of Man; Cain killed Abel out of jealousy and was exiled by God
icon(computer science) a graphic symbol (usually a simple picture) that denotes a program or a command or a data file or a concept in a graphical user interface
quai
quinone of five children born at the same time from the same pregnancy
coni
naoi
cion
uncoto a remarkable degree or extent
unaia sloth of Central America that has two long claws on each forefoot and three long claws on each hindfoot
unci(biology) any hook-shaped process or part

canairtight sealed metal container for food or drink or paint etc.
ainbelonging to or on behalf of a specified person (especially yourself); preceded by a possessive
conan argument opposed to a proposal
iona particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
aniblack tropical American cuckoo
qua
ocaSouth American wood sorrel cultivated for its edible tubers

ina unit of length equal to one twelfth of a foot
onin operation or operational
noa negative
anan associate degree in nursing
naa silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
unan organization of independent states formed in 1945 to promote international peace and security
aian agency of the United States Army responsible for providing timely and relevant and accurate and synchronized intelligence to tactical and operational and strategic level commanders
qi
nuthe 13th letter of the Greek alphabet

COQUINA