Here is a handy dandy guide to spelling differences in America, Britain and Canada. It is not complete. You get the general idea. ;)
Canadian English generally follows British spelling, but often the American alternative is possible too. The most commonly used spelling, where applicable, is marked with an asterisk (*).
Australian English also generally follows the British tradition.
Here is a link to quotation mark use in case you are curious. Also not created equal. British/Canadian use out of quote periods etc. American is inside even if logic says it should not be so. HERE.
British
|
Canadian |
American |
acknowledgement
|
acknowledgement*, acknowledgment
|
acknowledgment
|
ageing,
aging
|
aging*,
ageing*
|
aging
|
aeroplane
|
airplane
|
airplane
|
aesthetics
|
aesthetics
|
aesthetics, esthetics
|
aluminium
|
aluminum
|
aluminum
|
among, amongst | among*, amongst | among |
amortise | amortize | amortize |
anaemia | anemia | anemia |
anaesthesia
|
anaesthesia*, anesthesia
|
anesthesia
|
analogue | analogue | analogue, analog |
analyse | analyze*, analyse | analyze |
annex, annexe | annex | annex |
apnoea | apnea | apnea |
apologise*, apologize
|
apologize
|
apologize
|
archaeology
|
archaeology*, archeology
|
archaeology, archeology
|
armour | armour*, armor | armor |
artefact | artifact | artifact |
authorise*, authorize | authorize | authorize |
axe
|
axe
|
ax,
axe
|
balk*, baulk | balk | balk |
banister*, bannister | banister*, bannister | banister |
behaviour | behaviour | behavior |
behove | behoove | behoove |
blonde (for female) | blonde*, blond* | blond, blonde |
B.Sc. | B.Sc. | B.S. |
burette | burette*, buret | buret, burette |
burnt,
burned
|
burned*,
burnt*
|
burned,
burnt
|
bussed, bussing | bused, busing | bused, busing |
Caesarean | Caesarian*, Cesarean, Cesarian | Cesarean, Caesarean |
calibre | calibre | caliber |
cancelled
|
cancelled
|
canceled,
cancelled
|
candour | candour | candor |
capitalise | capitalize | capitalize |
carburettor | carburetor*, carburettor | carburetor |
catalogue
|
catalogue
|
catalog(ue)
|
catalyse | catalyze*, catalyse | catalyze |
centre
|
centre
|
center
|
cheque (noun,
money)
|
cheque
|
check
|
chequered
|
checkered
|
checkered
|
chilli*, chili | chili | chili |
cigarette | cigarette | cigarette, cigaret |
clamour | clamour | clamor |
collectable *, collectible | collectible | collectible |
colour
|
colour*,
color
|
color
|
connection*, connexion | connection | connection |
convenor | convenor | convener |
cosy
|
cozy
|
cozy
|
counsellor
|
counsellor*, counselor
|
counselor
|
criticise*, criticize
|
criticize
|
criticize
|
curb (verb) | curb | curb |
customize, customise | customize | customize |
demeanour | demeanour | demeanor |
dependant (a person who relies on another person, especially for financial support) | dependant | dependent |
defence
|
defence*,
defense
|
defense
|
dialling, dialled | dialing, dialed; dialling, dialled | dialing, dialed |
dialogue
|
dialogue
|
dialog(ue)
|
diarrhoea
|
diarrhea
|
diarrhea
|
dietician*, dietitian | dietitian*, dietician | dietitian*, dietician, |
dispatch*, despatch | dispatch | dispatch |
doughnut
|
doughnut,
donut
|
donut,
doughnut
|
Dr
(A contracted form of a word,
ending with the same letter as the full form, is not followed by a full
stop).
|
Dr.
|
Dr.
|
draught
(current of air)
|
draft
|
draft
|
dreamt,
dreamed
|
dreamt*,
dreamed*
|
dreamed,
dreamt
|
emphasise
|
emphasize
|
emphasize
|
encyclopedia*, encyclopædia | encyclopedia | encyclopedia |
endeavour | endeavour | endeavor |
enquiry*,
inquiry
|
inquiry*,
enquiry
|
inquiry
|
enrol
|
enrol
|
enroll
|
favour
|
favour
|
favor
|
favourite | favourite | favorite |
fibre
|
fibre
|
fiber
|
fibre optics | fiber optics, fibre optics (used by the Canadian government only) | fiber optics |
finalize, finalise | finalize | finalize |
flautist
|
flutist*,
flautist
|
flutist
|
flavour
|
flavour
|
flavor
|
focused, focusing or focussed, focussing | focused, focusing or focussed, focussing | focused, focusing |
foetus*, fetus | fetus | fetus |
forever*, for ever | forever | forever |
fuelling | fuelling | fueling |
fulfil
|
fulfil
|
fulfill,
fulfil
|
galvanise | galvanize | galvanize |
gaol (old fashioned), jail* | jail | jail |
gauge | gauge | gauge, gage |
gemmology | gemmology | gemology |
generalise | generalize | generalize |
glamour
|
glamour
|
glamour,
glamor
|
gonorrhoea | gonorrhea | gonorrhea |
grey
|
grey
|
gray
|
gynaecology | gynecology*, gynaecology | gynecology |
haemorrhage
|
hemorrhage
|
hemorrhage
|
harbour
|
harbour
|
harbor
|
harmonise*, harmonize | harmonize | harmonize |
haulier
|
hauler
|
hauler
|
homeopathy*, homoeopathy | homeopathy | homeopathy |
honour
|
honour
|
honor
|
humour | humour | humor |
initialise | initialize | initialize |
instalment | instalment*, installment | installment |
jail*, gaol (old fashioned) | jail | jail |
jewellery
|
jewellery*, jewelry
|
jewelry
|
judgment*,
judgement
|
judgment*,
judgement
|
judgment
|
kerb
(noun)
|
curb
|
curb
|
kilometre | kilometre | kilometer |
label, labelled, labelling | label, labelled, labelling | label, labeled, labeling |
labour
|
labour
|
labor
|
lasagne | lasagna | lasagna |
leant,
leaned
|
leaned
|
leaned
|
learnt,
learned
|
learned*,
learnt*
|
learned
|
licence (noun) | licence | license |
license (verb) | license*, licence | license |
litre
|
litre
|
liter
|
lustre | lustre | luster |
manoeuvre
|
manoeuvre*, maneuver
|
maneuver
|
marvellous | marvellous | marvelous |
maximise*, maximize | maximize | maximize |
meagre | meagre | meager |
metre
(unit of
length)
|
metre
|
meter
|
modelled | modelled | modeled |
modelling | modelling | modeling |
mould
|
mould
|
mold
|
moustache | moustache*, mustache | mustache, moustache |
mum, mummy | mum, mummy*, mom, mommy | mom, mommy |
neighbour
|
neighbour
|
neighbor
|
net, nett (amount of money) | net | net |
ochre | ochre | ocher |
odour | odour*, odor | odor |
oedema, edema | edema | edema |
oesophagus*, esophagus | esophagus | esophagus |
oestrogen*, estrogen | estrogen | estrogen |
offence
|
offence*,
offense
|
offense
|
omelette
|
omelette*,
omelet
|
omelet,
omelette
|
organisation*, organization
|
organization
|
organization
|
organise | organize | organize |
optimise*, optimize | optimize | optimize |
orientate | orient | orient |
orientated | oriented | oriented |
orthopaedic | orthopaedic*, orthopedic | orthopedic |
pædiatrics | pediatrics | pediatrics |
paedophile*, pedophile | pedophile | pedophile |
paralyse | paralyze*, paralyse | paralyze |
parlour
|
parlour
|
parlor
|
parallelling, parallelled
|
paralleling, paralleled
|
paralleling, paralleled
|
peddler*,
pedlar
|
peddler*,
pedlar
|
peddler
|
penalise, penalisation | penalize, penalization | penalize, penalization |
pleaded
|
pleaded
|
pleaded,
pled
|
plough
|
plow*,
plough
|
plow
|
practise
(verb)
|
practise*,
practice
|
practice
|
practice
(noun)
|
practice
|
practice
|
pretence
|
pretense*,
pretence
|
pretense
|
programme
(TV), program (computer)
|
program*,
programme
|
program
|
pyjamas
|
pyjamas
|
pajamas
|
rancour | rancour | rancor |
realise*,
realize
|
realize
|
realize
|
recognise*, recognize | recognize | recognize |
rigour | rigour | rigor |
rumour | rumour | rumor |
sabre | sabre | saber |
saleable | saleable | saleable, salable |
saviour | saviour | savior |
savour
|
savour
|
savor
|
sceptical
|
sceptical*, skeptical
|
skeptical
|
signalling | signalling | signaling |
skilful
|
skilful*,
skillful
|
skillful,
skilful
|
slipped disc | slipped disc | slipped disk |
smelt,
smelled
|
smelled
|
smelled
|
snorkelling | snorkelling | snorkeling |
speciality
|
specialty*, speciality
|
specialty
|
standardise, standardisation | standardize, standardization | standardize, standardization |
sulphur
|
sulphur*,
sulfur
|
sulfur
|
theatre
|
theatre
|
theater
|
theatregoer
|
theatregoer
|
theatergoer
|
titbit
|
tidbit
|
tidbit
|
towards | toward*, towards | toward, towards (unusual) |
travelling
|
travelling
|
traveling,
travelling
|
tumour | tumour | tumor |
tyre
|
tire
|
tire
|
valour | valour | valor |
vapour | vapour | vapor |
vice
(the
device)
|
vice
|
vise,
vice
|
vigour | vigour | vigor |
visualise*, visualize | visualize | visualize |
wagon*, waggon | wagon | wagon |
woollen | woollen*, woolen | woolen |
yogurt*, yoghurt, yoghourt | yogourt*, yoghurt, yogurt | yogurt*, yoghurt, yoghourt |
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