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

paisaa fractional monetary unit in Bangladesh and India and Nepal and Pakistan
pavis(Middle Ages) a large heavy oblong shield protecting the whole body; originally carried but sometimes set up in permanent position

visaan endorsement made in a passport that allows the bearer to enter the country issuing it
vasaa tube in which a body fluid circulates
spiva person without employment who makes money by various dubious schemes; goes about smartly dressed and having a good time
piasperennial herb of East Indies to Polynesia and Australia; cultivated for its large edible root yielding Otaheite arrowroot starch

via
spaa health resort near a spring or at the seaside
sipa small drink
ava
pas(ballet) a step in dancing (especially in classical ballet)
sapa watery solution of sugars, salts, and minerals that circulates through the vascular system of a plant
piaperennial herb of East Indies to Polynesia and Australia; cultivated for its large edible root yielding Otaheite arrowroot starch
psia unit of pressure
vasa tube in which a body fluid circulates
vis
aspof southern Europe; similar to but smaller than the adder
pis
ais
aasan associate degree in applied science

ishave the quality of being; (copula, used with an adjective or a predicate noun)
asa very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
paan informal term for a father; probably derived from baby talk
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
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
pithe ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...
aaa dry form of lava resembling clinkers

PIASAVA