Below is a list of potential QWERTY keyboard 'typos' (typing mistakes) for the phrase 'serif', from the free online typo generator. Enter another phrase to see possible typing errors, or select from one of the "top typos" charts.
Original
serif
Transposition0
esrif
sreif
seirf
serfi
Transposition1
resif
siref
sefir
Transposition2
iersf
sfrie
Transposition2r
iresf
sfire
Transposition0x2
esirf
esrfi
srefi
Slip3A
ersif
srief
seifr
Slip3B
rseif
sierf
sefri
Omission
erif
srif
seif
serf
seri
Repetition
sserif
seerif
serrif
seriif
seriff
QWERTY Substitution
aerif
derif
swrif
srrif
seeif
setif
seruf
serof
serid
serig
QWERTY Repetition after
saerif
sderif
sewrif
serrif
sereif
sertif
seriuf
seriof
serifd
serifg
QWERTY Repetition before
aserif
dserif
swerif
srerif
seerif
setrif
seruif
seroif
seridf
serigf
QWERTY Substitution Transposed
earif
areif
aeirf
aerfi
edrif
dreif
deirf
derfi
wsrif
srwif
swirf
swrfi
rsrif
srirf
srrfi
eseif
seief
seefi
estif
steif
seitf
setfi
esruf
sreuf
seurf
serfu
esrof
sreof
seorf
serfo
esrid
sreid
seird
serdi
esrig
sreig
seirg
sergi
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