Security Service
Secret Intelligence Service
understrapper
6
C
007
dipropylethyne
stannane
quintuplicate
germanium tetrahydride
germane
lithiosilane
ruthenium tetroxide
penta-
quin-
quinque-
peroxophosphoric acid
Fifth
man alive
indigane
ionizer
potassium feldspar
threader
xenon tetroxide
digermane
microspotter
mavlyanovite
quintuplication
shallot
quadruple
forsterite
magnesio-
argandite
langbanite
spreader
jurupaite
spessartine
magnalium
lutecia
quadruplication
pentairon
lithium borohydride
microfiche
baileychlore
lutemaker
four-fifths
manganomanganic oxide
Scotch
neolite
nimite
armbrusterite
pentaarsenic
ferromagnesian
manganite
pentaselenide
godovikovite
erlichmanite
mod
germanic
multiplicator
hexamagnesium
multitester
tetrasiloxane
sekaninaite
chipster
quadrigram
wecht
magnesic
corer
microfibrous
chiplet
pentavalent
manganese tetrafluoride
aspirin
sarkinite
ferraioloite
5K
roentgenoscope
orthorhombic pyroxene
fluoroscope
Xan
softswitch
five
Itanic
alane
lithiophorite
quinquivalent
karyo-
lutetium oxide
chemiluminometry
fivefold
tetrafolate
injector
amplitron
beryllium
inspector
qandilite
kadyrelite
chesterite
quintuplicate
ferromagnesian
germanic
magnesic
microfibrous
pentavalent
quinquivalent
fivefold
understrapper
6
dipropylethyne
stannane
germanium tetrahydride
germane
lithiosilane
ruthenium tetroxide
peroxophosphoric acid
indigane
ionizer
potassium feldspar
threader
xenon tetroxide
digermane
microspotter
mavlyanovite
quintuplication
shallot
forsterite
argandite
langbanite
spreader
jurupaite
spessartine
magnalium
lutecia
quadruplication
pentairon
lithium borohydride
microfiche
baileychlore
lutemaker
four-fifths
manganomanganic oxide
neolite
nimite
armbrusterite
pentaarsenic
manganite
pentaselenide
godovikovite
erlichmanite
mod
multiplicator
hexamagnesium
multitester
tetrasiloxane
sekaninaite
chipster
quadrigram
corer
chiplet
manganese tetrafluoride
aspirin
sarkinite
ferraioloite
5K
roentgenoscope
orthorhombic pyroxene
fluoroscope
Xan
softswitch
five
alane
lithiophorite
lutetium oxide
chemiluminometry
tetrafolate
injector
amplitron
beryllium
inspector
qandilite
kadyrelite
chesterite
quadruple
wecht
English words for 'MI5'
As you may have noticed, above you will find words for "MI5". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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a crackpot.
international waters
airdrop
to rinse
to have (e.g. lunch)
To astonish
submissive partner of a homosexual relationship
the gist.
a guideline.
resilient
independent action
to be very aged
placer
stained glass
paying no attention to
heterodox
being almost full
courtroom
to end in failure
fission
surfactant
alien.
professor
string bean
disheartening.
to sodomise
Usually
estrogen
thermal recycling
a layoff.
icing
salamanders
not busy
to step forward
vegetables
in either case
snide
to play it safe
public place
mercenary
embankment
squeeze.
managing
clearness
babble.
continuously.
fruit
to waste
want
radical