“HIBISCUS” is a valid word. — 15 points Scrabble

suchof so extreme a degree or extent
busha low woody perennial plant usually having several major stems
cubsan awkward and inexperienced youth
subsa large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States
hissa fricative sound (especially as an expression of disapproval)
cussa persistently annoying person
ibiswading birds of warm regions having long slender down-curved bills
chubEuropean freshwater game fish with a thick spindle-shaped body
chisthe circulating life energy that in Chinese philosophy is thought to be inherent in all things; in traditional Chinese medicine the balance of negative and positive forms in the body is believed to be essential for good health
hubsthe central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes
bussthe act of caressing with the lips (or an instance thereof)
sibsa person's brother or sister
sicsurge to attack someone
huic
ichs

his
busa vehicle carrying many passengers; used for public transport
sisa female person who has the same parents as another person
chithe circulating life energy that in Chinese philosophy is thought to be inherent in all things; in traditional Chinese medicine the balance of negative and positive forms in the body is believed to be essential for good health
suba large sandwich made of a long crusty roll split lengthwise and filled with meats and cheese (and tomato and onion and lettuce and condiments); different names are used in different sections of the United States
cuban awkward and inexperienced youth
hubthe central part of a car wheel (or fan or propeller etc) through which the shaft or axle passes
ich
sicurge to attack someone
hic
bis
cisan alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991
siba person's brother or sister

ishave the quality of being; (copula, used with an adjective or a predicate noun)
usNorth American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
uh
hian expression of greeting
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
sh
bia heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals

HIBISCUS