#language synonyms
online, web, browser
chart, plot
buy, purchase
shortcut, favorite
gui, app 

#acronyms
radio frequency, rf
partial differential equation, pde
long term evolution, lte
ecg, ekg, electrocardiogram
particle swarm optimization, pso
pulse width modulation, pwm
eeg, electroencephalogram
maximum power point tracker, mppt
multiple-input-multiple-output, mimo
personal license password, plp
false discovery rate, fdr
simulation data inspector, sdi
mfile, m-file, .m-file, m file, .m file => matlab-file

#function names
diagonal, diag
derivatives, diff
histogram, imhist
transfer function, tf
threshold, greythresh
MIMO OFDM, MIMO Systems

#semantic
apple, mac, iphone
beaglebone, beagleboard
quadcopter, drone
neural network toolbox, deep learning
favorite, shortcut
pdetool, pdemodeler

#British and US
amphitheatre, amphitheater
calibre, caliber
centimetre, centimeter
centre, center
fibre, fiber
goitre, goiter
kilometre, kilometer
litre, liter
lacklustre, lackluster
lustre, luster
manoeuvre,maneuver
meagre, meager
metre, meter
millimetre, millimeter
sabre, saber
sceptre, scepter
sombre, somber
spectre, specter
theatre, theater
arbour, arbor
ardour, ardor
armour, armor
armoury, armory
behaviour, behavior
belabour, belabor
candour, candor
clamour, clamor
colour, color
demeanour, demeanor
endeavour, endeavor
favourite, favorite
flavour, flavor
glamour, glamor
harbour, harbor
honour, honor
humour, humor
labour, labor
neighbour, neighbor
odour, odor
rancour, rancor
rigour, rigor
rumour, rumor
saviour, savior
savour, savor
savoury, savory
splendour, splendor
valour, valor
vapour, vapor
vigour, vigor
appetiser, appetizer
amortise, amortize
analyse, analyze
apologize, apologize
authorise, authorize
baptise, baptize
breathalyse, breathalyze
bowdlerise, bowdlerize
brutalise, brutalize
carbonise, carbonize
canonise, canonize
capitalise, capitalize
catalyse, catalyze
categorise, categorize
cauterise, cauterize
characterise, characterize
civilise, civilize
colonise, colonize
criticise, criticize
dramatise, dramatize
emphasise, emphasize
equalise, equalize
factorise, factorize
familiarise, familiarize
fertilize, fertilize
globalise, globalize
hospitalise, hospitalize
hypnotise, hypnotize
initialise, initialize
ionise, ionize
italicise, italicize
itemise, itemize
jeopardise, jeopardize
magnetise, magnetize
marginalise, marginalize
materialise, materialize
minimise, minimize
maximise, minimize
mobilise, mobilize
naturalise, naturalize
organize, organize
popularise, popularize
paralyse, paralyze
realise, realize
recognize, recognize
satirise, satirize
standardise, standardize
symbolise, symbolize
utilise, utilize
vaporise, vaporize
victimise, victimize
visualise, visualize
vocalise, vocalize
vulcanise, vulcanize
westernise, westernize
cancelled, canceled
canceling, cancelling
counsellor, counselor
equalled, equaled
fuelled, fueled
fuelling, fueling
grovelling, groveling
jeweller, jeweler
jewellery, jewelry
levelled, leveled
libelled, libeled
marvellous, marvelous
modelling, modeling
panelled, paneled
quarrelling, quarreling
revelled, reveled
travelling, traveling
traveller, traveler
woollen, woolen
appal, appall
distil, distill
enrol, enroll
enthral, enthrall
fulfil, fulfill
instil, instill
instalment, installment
skilful, skillfull
willful, willfull
anaemia, anemia
anaesthesia, anesthesia
caesarean, cesarean
diarrhoea, diarrhea
encyclopaedia, encyclopedia
foetus, fetus
gynaecology, gynecology
haemorrhage, hemorrhage
leukaemia, leukemia
manoeuvre, maneuver
mementoes, mementos
oestrogen, estrogen
orthopaedic, orthopedic
paediatric, pediatric
palaeontology, paleontology
defence,defense
licence,license
offence,offense
practice, practise
pretence,pretense
analogue,analog
catalogue,catalog
dialogue,dialog
epilogue, epilog
monologue, monolog
prologue, prolog
travelogue, travelog
acknowledgement, acknowledgment
adapter, adaptor
aeon, eon
aeroplane, airplane
aesthetic, esthetic
ageing, aging
aluminium, aluminum
annexe, annex
arguement, argument
artefact, artifact
axe, ax
bannister, banister
baulk, balk
behove, behoove
biassed, biased
carat, karat
calliper, caliper
chilli, chili
cosy, cozy
disc, disk
draught, draft
flautist, flutist
fillet, filet
furore, furor
gaol, jail
grey, gray
gauge, gage
homoeopathy, homeopathy
inflexion, inflection
judgement, judgment
kerb, curb
liquorice, licorice
milligramme, milligram
misspelt, misspelled
moustache, mustache
mould, mold
nought, naught
omelette, omelet
phial, vial
plough, plow
programme, program
pyjamas, pajamas
sceptic, skeptic
smoulder, smolder
sulphur, sulfur
tyre, tire
whisky, whiskey
yoghurt, yogurt