Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'oster', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
oster
Transposition0
soter
otser
osetr
ostre
Transposition1
tsoer
oetsr
osret
Transposition2
estor
ortes
Transposition2r
etsor
orets
Transposition0x2
soetr
sotre
otsre
Slip3A
stoer
otesr
osert
Slip3B
toser
oestr
osrte
Omission
ster
oter
oser
ostr
oste
Repetition
ooster
osster
ostter
osteer
osterr
QWERTY Substitution
ister
pster
oater
odter
osrer
osyer
ostwr
ostrr
ostee
ostet
QWERTY Repetition after
oister
opster
osater
osdter
ostrer
ostyer
ostewr
osterr
ostere
ostert
QWERTY Repetition before
ioster
poster
oaster
odster
osrter
osyter
ostwer
ostrer
osteer
ostetr
QWERTY Substitution Transposed
siter
itser
isetr
istre
spter
ptser
psetr
pstre
aoter
otaer
oaetr
oatre
doter
otder
odetr
odtre
sorer
orser
oserr
osrre
soyer
oyser
oseyr
osyre
sotwr
otswr
oswtr
ostrw
sotrr
otsrr
osrtr
sotee
otsee
osete
sotet
otset
osett
ostte
WrongDoubles
$JSON
$address
$applyDefault
$clone
$commas
$copy
$copyFields
$delete
$entries
$expand
$filt
$getType
$isArray
$isBoolean
$isClass
$isDate
$isElement
$isFunction
$isNumber
$isObject
$isString
$isType
$isValidDate
$json2txt
$keys
$load
$matchall
$parseFloats
$pick
$postJSON
$prune
$save
$set
$sortBy
$stringify
$sum
$svgPoster1
$textify
$toFixed
$type
$without
Glossary
Transposition = adjacent pairs of letters are swapped
Omission = individual letters are missed out
Repetition = individual letters are entered twice consecutively
QWERTY substitution = letters are replaced by each of their QWERTY-keyboard based physical neighbours (e.g. 'h' gets replaced with y, u, j, n, b, g)
QWERTY repetition type 1 = letters are followed by each of their QWERTY-keyboard neighbours
QWERTY repetition type 2 = letters are preceded by each of their QWERTY-keyboard neighbours