From Wikipedia, the free encyclopedia
| U.S.
|
British
|
Canadian
|
Canadian (alt)
|
| acknowledgment
|
acknowledgement
|
acknowledgement
|
|
| aging
|
ageing
|
aging
|
|
| airplane
|
aeroplane
|
airplane
|
|
| aluminum
|
aluminium
|
aluminum
|
|
| amortize
|
amortise
|
amortize
|
|
| amphitheater
|
amphitheatre
|
amphitheatre
|
|
| analog
|
analogue
|
analogue
|
|
| analyze
|
analyse
|
analyze
|
|
| anemia
|
anaemia
|
anemia
|
|
| anemic
|
anaemic
|
anemic
|
|
| anesthesia
|
anaesthesia
|
anaesthesia
|
|
| anesthetic
|
anaesthetic
|
anaesthetic
|
|
| apnea
|
apnoea
|
apnea
|
|
| apologize
|
apologise
|
apologize
|
|
| appall
|
appal
|
appall
|
|
| appetizer
|
appetiser
|
appetizer
|
|
| arbor
|
arbour
|
arbour
|
|
| archeology
|
archaeology
|
archaeology
|
|
| ardor
|
ardour
|
ardour
|
|
| armor
|
armour
|
armour
|
|
| armory
|
armoury
|
armoury
|
|
| artifact
|
artefact
|
artifact
|
|
| authorize
|
authorise
|
authorize
|
|
| ax
|
axe
|
axe
|
|
| bandanna
|
bandanna
|
bandana
|
|
| baptize
|
baptise
|
baptize
|
|
| barreled
|
barrelled
|
barrelled
|
|
| barreling
|
barrelling
|
barrelling
|
|
| behavior
|
behaviour
|
behaviour
|
|
| behoove
|
behove
|
behoove
|
|
| belabor
|
belabour
|
belabour
|
|
| Breathalyzer
|
Breathalyser
|
Breathalyzer
|
|
| burned
|
burnt
|
burned
|
|
| bused
|
bussed
|
bused
|
|
| busing
|
bussing
|
busing
|
|
| caldron
|
cauldron
|
cauldron
|
|
| caliber
|
calibre
|
calibre
|
|
| canceled
|
cancelled
|
cancelled
|
|
| canceling
|
cancelling
|
cancelling
|
|
| candor
|
candour
|
candour
|
|
| capitalize
|
capitalise
|
capitalize
|
|
| caramelize
|
caramelise
|
caramelize
|
|
| carburetor
|
carburettor
|
carburetor
|
|
| catalog
|
catalogue
|
catalogue
|
|
| catalyze
|
catalyse
|
catalyze
|
|
| categorize
|
categorise
|
categorize
|
|
| cauterize
|
cauterise
|
cauterize
|
|
| center
|
centre
|
centre
|
|
| centering
|
centring
|
centring
|
|
| centimeter
|
centimetre
|
centimetre
|
|
| centralize
|
centralise
|
centralize
|
|
| Cesarean
|
Caesarean
|
Caesarian
|
|
| characterize
|
characterise
|
characterize
|
|
| check
|
cheque
|
cheque
|
|
| checkered
|
chequered
|
checkered
|
|
| chili
|
chilli
|
chili
|
|
| civilization
|
civilisation
|
civilization
|
|
| civilize
|
civilise
|
civilize
|
|
| clamor
|
clamour
|
clamour
|
|
| collectible
|
collectable
|
collectible
|
|
| colonize
|
colonise
|
colonize
|
|
| color
|
colour
|
colour
|
|
| commercialize
|
commercialise
|
commercialize
|
|
| computerize
|
computerise
|
computerize
|
|
| convener
|
convenor
|
convenor
|
|
| costumer
|
costumier
|
costumer
|
|
| councilor
|
councillor
|
councillor
|
|
| counseled
|
counselled
|
counselled
|
|
| counseling
|
counselling
|
counselling
|
|
| counselor
|
counsellor
|
counsellor
|
|
| cozy
|
cosy
|
cozy
|
|
| criticize
|
criticise
|
criticize
|
|
| crystallization
|
crystallisation
|
crystallization
|
|
| crystallize
|
crystallise
|
crystallize
|
|
| curb
|
kerb
|
curb
|
|
| customize
|
customise
|
customize
|
|
| defense
|
defence
|
defence
|
|
| demeanor
|
demeanour
|
demeanour
|
|
| dependent
|
dependant
|
dependant
|
|
| diarrhea
|
diarrhoea
|
diarrhea
|
|
| dietician
|
dietician
|
dietitian
|
|
| digitize
|
digitise
|
digitize
|
|
| disheveled
|
dishevelled
|
dishevelled
|
|
| dolor
|
dolour
|
dolour
|
|
| donut
|
doughnut
|
doughnut
|
|
| dreamed
|
dreamt
|
dreamt
|
|
| dueled
|
duelled
|
dueled
|
|
| dueling
|
duelling
|
duelling
|
|
| edema
|
oedema
|
edema
|
|
| empathize
|
empathise
|
empathize
|
|
| emphasize
|
emphasise
|
emphasize
|
|
| enamor
|
enamour
|
enamour
|
|
| endeavor
|
endeavour
|
endeavour
|
|
| enroll
|
enrol
|
enrol
|
|
| enrollment
|
enrolment
|
enrolment
|
|
| enthrall
|
enthral
|
enthrall
|
|
| enthrallment
|
enthralment
|
enthrallment
|
|
| eon
|
aeon
|
eon
|
|
| epicenter
|
epicentre
|
epicentre
|
|
| equaled
|
equalled
|
equalled
|
|
| equaling
|
equalling
|
equalling
|
|
| equalization
|
equalisation
|
equalization
|
|
| equalize
|
equalise
|
equalize
|
|
| esophagus
|
oesophagus
|
esophagus
|
|
| estrogen
|
oestrogen
|
estrogen
|
|
| familiarize
|
familiarise
|
familiarize
|
|
| favor
|
favour
|
favour
|
|
| hemophilia
|
haemophilia
|
hemophilia
|
|
| hemorrhage
|
haemorrhage
|
hemorrhage
|
|
| honor
|
honour
|
honour
|
|
| honorable
|
honourable
|
honourable
|
|
| honored
|
honoured
|
honoured
|
|
| honoring
|
honouring
|
honouring
|
|
| hospitalize
|
hospitalise
|
hospitalize
|
|
| humor
|
humour
|
humour
|
|
| hyperglycemia
|
hyperglycaemia
|
hyperglycemia
|
|
| hypnotize
|
hypnotise
|
hypnotize
|
|
| hypoglycemia
|
hypoglycaemia
|
hypoglycemia
|
|
| hypothesize
|
hypothesise
|
hypothesize
|
|
| idolize
|
idolise
|
idolize
|
|
| immortalize
|
immortalise
|
immortalize
|
|
| immunization
|
immunisation
|
immunization
|
|
| immunize
|
immunise
|
immunize
|
|
| industrialization
|
industrialisation
|
industrialization
|
|
| industrialize
|
industrialise
|
industrialize
|
|
| initialize
|
initialise
|
initialize
|
|
| inquiry
|
enquiry
|
inquiry
|
|
| installment
|
instalment
|
instalment*
|
installment
|
| institutionalize
|
institutionalise
|
institutionalize
|
|
| ionize
|
ionise
|
ionize
|
|
| jail
|
gaol
|
jail
|
|
| jeweled
|
jewelled
|
jewelled
|
|
| jeweler
|
jeweller
|
jeweller
|
|
| jewelry
|
jewellery
|
jewellery*
|
jewelry
|
| judgment
|
judgement
|
judgement
|
|
| labeled
|
labelled
|
labelled
|
|
| labeling
|
labelling
|
labelling
|
|
| labor
|
labour
|
labour
|
|
| laborer
|
labourer
|
labourer
|
|
| lasagna
|
lasagne
|
lasagna
|
|
| leaned
|
leant
|
leaned
|
|
| learned
|
learnt
|
learned
|
|
| legalize
|
legalise
|
legalize
|
|
| leukemia
|
leukaemia
|
leukemia
|
|
| leveled
|
levelled
|
levelled
|
|
| leveling
|
levelling
|
levelling
|
|
| libeled
|
libelled
|
libelled
|
|
| libeler
|
libeller
|
libeller
|
|
| libelous
|
libellous
|
libellous
|
|
| license
|
(noun)licence
|
licence
|
|
| licorice
|
liquorice
|
licorice
|
|
| liter
|
litre
|
litre
|
|
| louver
|
louvre
|
louvre
|
|
| louvered
|
louvred
|
louvred
|
|
| luster
|
lustre
|
lustre
|
|
| maneuver
|
manoeuvre
|
manoeuvre
|
|
| marveled
|
marvelled
|
marvelled
|
|
| marveling
|
marvelling
|
marvelling
|
|
| marvelous
|
marvellous
|
marvellous
|
|
| math
|
maths
|
math
|
|
| maximize
|
maximise
|
maximize
|
|
| meager
|
meagre
|
meagre
|
|
| memorialize
|
memorialise
|
memorialize
|
|
| memorize
|
memorise
|
memorize
|
|
| mesmerize
|
mesmerise
|
mesmerize
|
|
| meter
|
metre
|
metre
|
|
| militarize
|
militarise
|
militarize
|
|
| miniaturization
|
miniaturisation
|
miniaturization
|
|
| miniaturize
|
miniaturise
|
miniaturize
|
|
| minimize
|
minimise
|
minimize
|
|
| misdemeanor
|
misdemeanour
|
misdemeanour
|
|
| miter
|
mitre
|
mitre
|
|
| mobilize
|
mobilise
|
mobilize
|
|
| modeled
|
modelled
|
modelled
|
|
| modeling
|
modelling
|
modelling
|
|
| mold
|
mould
|
mould
|
|
| molder
|
moulder
|
moulder
|
|
| mollusk
|
mollusc
|
mollusc
|
|
| molt
|
moult
|
moult
|
|
| mustache
|
moustache
|
moustache
|
|
| naïveté
|
naivety
|
naïveté
|
|
| neighbor
|
neighbour
|
neighbour
|
|
| neighborhood
|
neighbourhood
|
neighbourhood
|
|
| neutralize
|
neutralise
|
neutralize
|
|
| ocher
|
ochre
|
ochre
|
|
| odor
|
odour
|
odour
|
|
| offense
|
offence
|
offence
|
|
| omelet
|
omelette
|
omelette
|
|
| optimization
|
optimisation
|
optimization
|
|
| optimize
|
optimise
|
optimize
|
|
| organization
|
organisation
|
organization
|
|
| organize
|
organise
|
organize
|
|
| orient
|
orientate
|
orient
|
|
| oriented
|
orientated
|
oriented
|
|
| orthopedic
|
orthopaedic
|
orthopaedic
|
|
| oxidize
|
oxidise
|
oxidize
|
|
| pajamas
|
pyjamas
|
pyjamas
|
|
| Paleocene
|
Palaeocene
|
Paleocene
|
|
| paneled
|
panelled
|
panelled
|
|
| paralleled
|
parallelled
|
paralleled
|
|
| paralleling
|
parallelling
|
paralleling
|
|
| paralyze
|
paralyse
|
paralyze*
|
paralyse
|
| parlor
|
parlour
|
parlour
|
|
| pasteurize
|
pasteurise
|
pasteurize
|
|
| pediatrics
|
paediatrics
|
pediatrics
|
|
| pedophile
|
paedophile
|
pedophile
|
|
| penalization
|
penalisation
|
penalization
|
|
| penalize
|
penalise
|
penalize
|
|
| personalize
|
personalise
|
personalize
|
|
| philosophize
|
philosophise
|
philosophize
|
|
| plagiarize
|
plagiarise
|
plagiarize
|
|
| plow
|
plough
|
plow
|
|
| polarize
|
polarise
|
polarize
|
|
| practice
|
(verb)practise
|
practise
|
|
| pretense
|
pretence
|
pretense
|
|
| prioritize
|
prioritise
|
prioritize
|
|
| privatize
|
privatise
|
privatize
|
|
| program
|
programme
|
program
|
|
| pulverize
|
pulverise
|
pulverize
|
|
| pummeled
|
pummelled
|
pummelled
|
|
| pummeling
|
pummelling
|
pummelling
|
|
| rancor
|
rancour
|
rancour
|
|
| realize
|
realise
|
realize
|
|
| recognize
|
recognise
|
recognize
|
|
| repellent
|
repellant
|
repellent
|
|
| reveled
|
revelled
|
revelled
|
|
| reveler
|
reveller
|
reveller
|
|
| reveling
|
revelling
|
revelling
|
|
| rigor
|
rigour
|
rigour
|
|
| rumor
|
rumour
|
rumour
|
|
| saber
|
sabre
|
sabre
|
|
| sanitization
|
sanitisation
|
sanitization
|
|
| sanitize
|
sanitise
|
sanitize
|
|
| sapor
|
sapour
|
sapour
|
|
| savior
|
saviour
|
saviour
|
|
| savor
|
savour
|
savour
|
|
| savory
|
savoury
|
savoury
|
|
| scepter
|
sceptre
|
sceptre
|
|
| scrutinize
|
scrutinise
|
scrutinize
|
|
| sensationalize
|
sensationalise
|
sensationalize
|
|
| shriveled
|
shrivelled
|
shrivelled
|
|
| shriveling
|
shrivelling
|
shrivelling
|
|
| signaled
|
signalled
|
signalled
|
|
| signaler
|
signaller
|
signaller
|
|
| signaling
|
signalling
|
signalling
|
|
| skeptic
|
sceptic
|
sceptic
|
|
| skeptical
|
sceptical
|
sceptical
|
|
| skillful
|
skilful
|
skilful
|
|
| smelled
|
smelt
|
smelled
|
|
| smolder
|
smoulder
|
smoulder
|
|
| snorkeled
|
snorkelled
|
snorkelled
|
|
| snorkeling
|
snorkelling
|
snorkelling
|
|
| somber
|
sombre
|
sombre
|
|
| specialize
|
specialise
|
specialize
|
|
| specialty
|
speciality
|
specialty
|
|
| specter
|
spectre
|
spectre
|
|
| spiraled
|
spiralled
|
spiralled
|
|
| spiraling
|
spiralling
|
spiralling
|
|
| splendor
|
splendour
|
splendour
|
|
| stabilize
|
stabilise
|
stabilize
|
|
| standardization
|
standardisation
|
standardization
|
|
| standardize
|
standardise
|
standardize
|
|
| sterilize
|
sterilise
|
sterilize
|
|
| stylize
|
stylise
|
stylize
|
|
| succor
|
succour
|
succour
|
|
| sulfur
|
sulphur
|
sulphur
|
|
| summarize
|
summarise
|
summarize
|
|
| symbolize
|
symbolise
|
symbolize
|
|
| synthesize
|
synthesise
|
synthesize
|
|
| systemize
|
systemise
|
systemize
|
|
| theater
|
theatre
|
theatre
|
|
| tidbit
|
titbit
|
tidbit
|
|
| tire
|
(noun)tyre
|
tire
|
|
| ton
|
tonne
|
tonne
|
|
| totaled
|
totalled
|
totalled
|
|
| totaling
|
totalling
|
totalling
|
|
| toward
|
towards
|
toward
|
|
| tranquility
|
tranquillity
|
tranquillity
|
|
| tranquilize
|
tranquillise
|
tranquillize
|
|
| tranquilized
|
tranquillised
|
tranquillized
|
|
| tranquilizer
|
tranquilliser
|
tranquillizer
|
|
| tranquilizing
|
tranquillising
|
tranquillizing
|
|
| traveled
|
travelled
|
travelled
|
|
| traveler
|
traveller
|
traveller
|
|
| traveling
|
travelling
|
travelling
|
|
| triple
|
treble
|
triple
|
|
| tumor
|
tumour
|
tumour
|
|
| tunneled
|
tunnelled
|
tunnelled
|
|
| tunneler
|
tunneller
|
tunneller
|
|
| tunneling
|
tunnelling
|
tunnelling
|
|
| unionize
|
unionise
|
unionize
|
|
| utilize
|
utilise
|
utilize
|
|
| valor
|
valour
|
valour
|
|
| vapor
|
vapour
|
vapour
|
|
| vaporer
|
vapourer
|
vapourer
|
|
| vaporization
|
vaporisation
|
vaporization
|
|
| vaporize
|
vaporise
|
vaporize
|
|
| vaporizer
|
vaporiser
|
vaporizer
|
|
| vigor
|
vigour
|
vigour
|
|
| vise
|
vice
|
vice
|
|
| visualize
|
visualise
|
visualize
|
|
| willful
|
wilful
|
wilful
|
|
| willfully
|
wilfully
|
wilfully
|
|
| willfulness
|
wilfulness
|
wilfulness
|
|
| woolen
|
woollen
|
woollen
|
|
| yodeled
|
yodelled
|
yodelled
|
|
| yodeling
|
yodelling
|
yodelling
|
|
| yogurt
|
yoghurt
|
yogurt
|
|
