“CISSOIDS” is a valid word. — 11 points Scrabble

discospopular dance music (especially in the late 1970s); melodic with a regular bass beat; intended mainly for dancing at discotheques

discopopular dance music (especially in the late 1970s); melodic with a regular bass beat; intended mainly for dancing at discotheques
discssound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
discian athletic competition in which a disk-shaped object is thrown as far as possible
iodic
sodic

discsound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove
docsa licensed medical practitioner
disstreat, mention, or speak to rudely
dosssleep in a convenient place
sodssurface layer of ground containing a mat of grass and grass roots
codsthe vessel that contains the seeds of a plant (not the seeds themselves)
sicsurge to attack someone
coss(in India) a unit of length having different values in different localities
odic

doca licensed medical practitioner
cosratio of the adjacent side to the hypotenuse of a right-angled triangle
sisa female person who has the same parents as another person
sodsurface layer of ground containing a mat of grass and grass roots
codthe vessel that contains the seeds of a plant (not the seeds themselves)
dosthe federal department in the United States that sets and maintains foreign policies
ids
disgod of the underworld; counterpart of Greek Pluto
sosan internationally recognized distress signal in radio code
sicurge to attack someone
cisan alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991
ods

ishave the quality of being; (copula, used with an adjective or a predicate noun)
doan uproarious party
sothe syllable naming the fifth (dominant) note of any musical scale in solmization
ida state in the Rocky Mountains
sia tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
oda doctor's degree in optometry
osa mouth or mouthlike opening

CISSOIDS