“CYANID” is a valid word. — 12 points Scrabble

candya rich sweet made of flavored sugar and often combined with fruit or nuts
canidany of various fissiped mammals with nonretractile claws and typically long muzzles
acidy
nicada rechargeable battery with a nickel cathode and a cadmium anode; often used in emergency systems because of its low discharge rate when not in use

acidany of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
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
cyana primary subtractive color for light; has a blue-green color
cadi
caid
ayinthe 16th letter of the Hebrew alphabet

and
canairtight sealed metal container for food or drink or paint etc.
anyone or some or every or all without specification
daytime for Earth to make a complete rotation on its axis
ainbelonging to or on behalf of a specified person (especially yourself); preceded by a possessive
aida resource
naya negative
yinthe dark negative feminine principle in Chinese dualistic cosmology
icydevoid of warmth and cordiality; expressive of unfriendliness or disdain
dina loud harsh or strident noise
cadsomeone who is morally reprehensible
aniblack tropical American cuckoo
yid(ethnic slur) offensive term for a Jew
caya coral reef off the southern coast of Florida

ina unit of length equal to one twelfth of a foot
anan associate degree in nursing
ya
ida state in the Rocky Mountains
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)
ada public promotion of some product or service
ay
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

CYANID