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

soulthe immaterial part of a person; the actuating cause of an individual life
foulan act that violates the rules of a sport
sloba coarse obnoxious person
fobsa vest pocket to hold a pocket watch
lobsan easy return of a tennis ball in a high arc
fluban embarrassing mistake
flusan acute febrile highly contagious viral disease
fubs
slubsoft lump or unevenness in a yarn; either an imperfection or created by design

busa vehicle carrying many passengers; used for public transport
fluan acute febrile highly contagious viral disease
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
sola colloid that has a continuous liquid phase in which a solid is suspended in a liquid
soba dyspneic condition
soua former French coin of low denomination; often used of any small amount of money
loban easy return of a tennis ball in a high arc
foba vest pocket to hold a pocket watch
boswild and domestic cattle; in some classifications placed in the subfamily Bovinae or tribe Bovini
fou
fub

of
sothe syllable naming the fifth (dominant) note of any musical scale in solmization
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
bo
lo
osa mouth or mouthlike opening

SOBFUL