Eustachian tube
Fallopian tube
aperture
avenue
blowhole
broaching
canal
cavity
channel
chasm
check
chute
clearing
cleft
con
consider
crack
debouch
disclosure
door
duct
egress
emunctory
escape
estuary
examine
exhaust
exit
fenestra
fistula
floodgate
flume
fontanel
foramen
gap
gape
gat
gaze
go over
gulf
hiatus
hole
hollow
inlet
interval
intestines
lacuna
laying open
leak
pored
porely
pores
poring
crevice
fissure
opening
orifice
Boer
Bohr
C4
Dior
Dore
Flore
Fore
Gabor
Gore
Igor
Lahore
Laure
Lenore
Livermore
Moore
More
Orr
Shor
Shore
Thor
Timor
Tor
Torr
abhor
abor
adore
antiwar
anymore
ashore
before
boar
bore
chore
cor
core
corps
corr
decor
deplore
dorr
drawer
explore
floor
flor
for
fore
four
galore
glore