absence – absense, absentse, abcense, absance
acceptable – acceptible
accidentally/accidently – accidentaly
accommodate – accomodate, acommodate
achieve – acheive
acknowledge – acknowlege, aknowledge
acquaintance – acquaintence, aquaintance
acquire – aquire, adquire
acquit – aquit
acreage – acrage, acerage
address – adress
adultery – adultary
advisable – adviseable, advizable
affect – effect (both words exist, but are distinct)
aggression – agression
aggressive – agressive
allegiance – allegaince, allegience, alegiance
almost – allmost
a lot – alot (must be two words), allot
amateur – amatuer, amature
annually – anually, annualy
apparent – apparant, aparent, apparrent, aparrent
arctic – artic
argument – arguement
atheist – athiest, athist
awful – awfull, aweful
because – becuase, becasue
beautiful – beatiful
becoming – becomeing
beginning – begining
believe – beleive
bellwether – bellweather
benefit - benifit
buoy – bouy
buoyant – bouyant
business – buisness
calendar – calender
camouflage – camoflage, camoflague
capitol – capital (both words exist, but are distinct)
Caribbean – Carribean
category – catagory
caught – cauhgt, caugt
cemetery – cemetary, cematery
changeable – changable
chief – cheif
colleague – collaegue, collegue
column – colum
coming – comming
committed – commited, comitted
comparison – comparsion
concede – conceed
congratulate – congradulate
conscientious – consciencious
conscious – concious, consious
consensus – concensus
controversy – contraversy
coolly – cooly
daiquiri – dacquiri, daquiri
deceive – decieve
definite – definate, definit
definitely – definitly, definately, definatly, defiantly
desperate – desparate
difference – diffrence
dilemma – dilema
disappoint – dissapoint
disastrous – disasterous
drunkenness – drunkeness
dumbbell – dumbell
embarrass – embarass
equipment – equiptment (wrong in numerous webpages)[
exceed – excede
exhilarate – exilerate
existence – existance
experience – experiance
extreme – extreem
fascinating – facinating
fiery – firey
fluorescent – flourescent
foreign – foriegn
friend – freind
fulfil – fullfil (American: fulfill)[1]
gauge – guage
guidance – guidence[10]
height – heighth, heigth[4]
hierarchy – heirarchy[4]
hors d'oeuvres – hors derves, ordeurves[3]
humorous – humerous[4]
hygiene – hygene, hygine, hiygeine, higeine, hygeine[3]
ignorance – ignorence[4]
imitate – immitate[3]
indict – indite[4]
indispensable – indispensible[4]
inoculate – innoculate[4]
intelligence – inteligence, intelligance[4]
jewelry (US)/jewellery (UK) – jewelery[4]
judgment – judgement (only a misspelling in the U.S.)[4]
kernel – kernal (distinct from homophone "colonel")[4]
library – libary, liberry[4]
license – lisence[4] (US always license, UK noun licence)[1]
lightning – lightening[4]
lose – loose[11]
maintenance – maintainance, maintnance[1]
medieval – medeval, medevil, mideval[4]
memento – momento[4]
mischievous – mischievious, mischevous, mischevious (The spelling "mischievious" and the corresponding pronunciation are still considered non-standard despite being current and existing since at least the 16th century.)[4][12]
necessary – neccessary, necessery[1]
niece – neice[1]
neighbour – nieghbor[4]
noticeable – noticable[4]
occasion – occassion[1]
occasionally – occasionaly, occassionally[4]
occurrence – occurrance, occurence[4]
occurred – occured[1]
omission – ommision, omision[1]
original – orignal[1]
outrageous – outragous[1]
parliament – parliment[1]
pastime – passtime, pasttime[4]
perceive – percieve[1]
perseverance – perseverence[4]
personnel – personell, personel[4]
plagiarize – plagerize[3]
playwright – playright, playwrite[4]
potatoes – potatos[1]
precede – preceed[4]
presence – presance[1]
principle – principal[4]
professor – professer[3]
protester – protestor[13]
promise – promiss[10]
pronunciation – pronounciation[4]
proof – prufe[10]
prophecy (as noun) – prophesy (valid as verb)[3]
publicly – publically[4]
quarantine – quarentine[3]
queue – que[3]
questionnaire – questionaire, questionnair[1]
readable – readible[8]
really – realy[1]
receipt – reciept[4]
referred – refered[4]
reference – referance, refrence[4]
religious – religous, religius[10]
repetition – repitition[10]
restaurant – restarant, restaraunt[4]
rhyme – rime[4]
secretary – secratary, secretery[1]
seize – sieze[1]
sergeant – sargent[4]
siddhesh – saddhesh, siddhieh, sidesh, siddesh, siddensh, siddhensh[4]
similar – similer[1]
skilful – skilfull (American: skillful)[1]
speech – speach, speeche (archaic)[10]
successful – succesful, successfull, sucessful[1]
supersede – supercede[4]
surprise – suprise, surprize[1]
than – then
their – there, they're[4]
tomatoes – tomatos[1]
tomorrow – tommorow, tommorrow
twelfth – twelth
tyranny – tyrany
underrate – underate
until – untill
upholstery – upholstry
usable/useable – usible
vacuum – vaccuum, vaccum, vacume
vehicle – vehical
vicious – visious
weather – wether, whether
weird – wierd
welfare – wellfare, welfair
whether – wether (a wether is a castrated ram)
wilful – wilfull (American: willful)
withhold – withold
writing – writting, writeing