“OVERBOOK” is a valid word. — 17 points Scrabble

brokelacking funds
brooka natural stream of water smaller than a river (and often a tributary of a river)
bevor

over(cricket) the division of play during which six balls are bowled at the batsman by one player from the other team from the same end of the pitch
booka written work or composition that has been published (printed on pages bound together)
borea person who evokes boredom
robeany loose flowing garment
rook(chess) the piece that can move any number of unoccupied squares in a direction parallel to the sides of the chessboard
verbthe word class that serves as the predicate of a sentence
oboea slender double-reed instrument; a woodwind with a conical bore and a double-reed mouthpiece
boora crude uncouth ill-bred person lacking culture or refinement
kerban edge between a sidewalk and a roadway consisting of a line of curbstones (usually forming part of a gutter)
rovemove about aimlessly or without any destination, often in search of food or employment
kore(Greek mythology) daughter of Zeus and Demeter; made queen of the underworld by Pluto in ancient mythology; identified with Roman Proserpina
kobo100 kobos equal 1 naira in Nigeria
broo

bro
robtake something away by force or without the consent of the owner
booa cry or noise made to express displeasure or contempt
orea mineral that contains metal that is valuable enough to be mined
orbthe ball-shaped capsule containing the vertebrate eye
revrate of revolution of a motor
roefish eggs or egg-filled ovary; having a grainy texture
reb`Johnny' was applied as a nickname for Confederate soldiers by the Federal soldiers in the American Civil War; `greyback' derived from their grey Confederate uniforms
koran ancient Hebrew unit of capacity equal to 10 baths or 10 ephahs
obe
koban orange-brown antelope of southeast Africa
oke
voe

bea light strong brittle grey toxic bivalent metallic element
ora state in northwestern United States on the Pacific
ok
era trivalent metallic element of the rare earth group; occurs with yttrium
rea rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
bo
oe

OVERBOOK