by Paul Zollo
acre-foot
afoot
barefoot
bigfoot
blackfoot
bloodroot
clubfoot
crowfoot
crows-foot
flatfoot
foot
forefoot
hotfoot
input
kaput
output
pussyfoot
put
root
snakeroot
soot
splayfoot
tenderfoot
throughput
thruput
underfoot
uproot
webfoot
Long OP
antelope
biomicroscope
bronchoscope
cantaloupe
chromoscope
cope
dope
electroscope
elope
envelope
fiberscope
fluoroscope
grope
gyroscope
heliotrope
hope
horoscope
interlope
isotope
kaleidoscope
kinescope
lope
microscope
misanthrope
mope
myope
nope
oscilloscope
periscope
pope
proctoscope
radarscope
radioisotope
radioscope
rope
scop
scope
skiascope
slope
sniperscope
soap
spectroscope
stereoscope
stethoscope
stope
stroboscope
taupe
telescope
thermoscope
tightrope
tope
towrope
trope
zootrope
OP
aesop
airdrop
atop
backdrop
backstop
bakeshop
barbershop
bellhop
blacktop
bookshop
bop
bricktop
bubbletop
carhop
cartop
chop
chop-chop
clip-clop
co-op
coin-op
cop
crop
dewdrop
doorstop
drop
eardrop
eavesdrop
flattop
flip-flop
flop
fop
gumdrop
hardtop
hedgehop
hilltop
hockshop
hop
housetop
joypop
lollipop
lollypop
lop
maintop
malaprop
milksop
mop
mountaintop
nonstop
outcrop
overtop
pawnshop
plop
pop
prop
raindrop
rooftop
scop
sharecrop
shop
shortstop
slop
snowdrop
sop
stop
strop
swap
sweatshop
sweet-shop
swop
table-hop
tabletop
tabstop
teardrop
tiptop
toedrop
top
treetop
turboprop
unstop
whistle-stop
whop
window-shop
wop
workshop
yawp
OR
abhor
adore
ambassador
amour
antiwar
anymore
ashore
bailor
Baltimore
bedsore
before
boar
bookstore
boor
bore
boudoir
brochure
brontosaur
carnivore
centaur
claymore
cocksure
coinsure
commodore
condor
conquistador
contour
core
corps
corridor
cure
cuspidor
decor
deplore
dinosaur
door
door-to-door
downpour
drawer
drugstore
eleanor
encore
entrepreneur
evermore
exospore
explore
eyesore
Fillmore
floor
fluor
folklore
footsore
for
fore
foreshore
foreswore
forevermore
forswore
four
fourscore
furthermore
galore
gore
hardcore
heartsore
hellebore
herbivore
hereinbefore
heretofore
hoar
ignore
implore
indoor
inshore
Labrador
lessor
lore
matador
mentor
metaphor
meteor
minotaur
moor
more
nevermore
nor
o’er
oar
obligor
offshore
onshore
oospore
or
ore
outdoor
outpour
outscore
outwore
overbore
overinsure
pinafore
pompadour
poor
pore
postwar
pour
prescore
prewar
promisor
provacateur
prowar
rancor
rapport
reassure
reservoir
restore
roar
Salvador
savior
saviour
score
seashore
semaphore
senor
servitor
shore
signor
Singapore
snore
soar
sophomore
sopor
sore
spoor
spore
stegosaur
stentor
stevedore
store
stridor
subfloor
sublessor
sure
swore
sycamore
therefor
therefore
thereinbefore
theretofore
thor
threescore
tore
toreador
tour
troubadour
two-by-four
tyrannosaur
underscore
uproar
war
wherefor
wherefore
&
nbsp; whore
wore
yore
zoospore
zygospore
ORB
absorb
orb
reabsorb
ORCH
blowtorch
porch
scorch
torch
ORD
abhorred
aboard
aboveboard
accord
adored
afford
backboard
baseboard
billboard
blackboard
board
bored
breadboard
broadsword
buckboard
cardboard
centerboard
chalkboard
checkerboard
chessboard
chipboard
chord
clavichord
clipboard
coinsured
concord
contoured
cord
cored
corkboard
cured
dashboard
deplored
discord
duckboard
explored
fiberboard
fingerboard
fiord
fjord
floorboard
floored
footboard
ford
freeboard
gored
gourd
gourde
hardboard
harpsichord
headboard
highboard
hoard
hord
horde
ignored
implored
inboard
keyboard
landlord
lapboard
lord
moldboard
moored
mortarboard
notochord
oared
outboard
outscored
overassured
overboard
overinsured
overlord
paperboard
particleboard
pasteboard
pegboard
pinafored
plasterboard
pompadoured
pored
poured
prerecord
prescored
rancored
reassured
record
restored
roared
scoreboard
scored
seaboard
shipboard
shored
shuffleboard
sideboard
signboard
skateboard
slumlord
smorgasbord
snored
soared
soundboard
springboard
stevedored
stored
surfboard
switchboard
sword
tagboard
toured
toward
underscored
unexplored
unrestored
untoward
wallboard
warlord
warred
washboard
weatherboard
whipcord
whored
ORF
Orff
dwarf
wharf
ORJ
disgorge
engorge
forge
George
gorge
reforge
ORK
cork
fork
hayfork
pitchfork
pork
stork
torque
uncork
york
ORM
barnstorm
brainstorm
chloroform
conform
cruciform
cuneiform
deform
dendriform
dentiform
dorm
ensiform
firestorm
form
freeform
hailstorm
inform
landform
linguiform
