Subs for Too-Long Words
(25% are two syllables ending in "o."  See bold entries.)

abdominal muscles => abs
administrative assistant=> admin
advertisement => ad
Afro-American hair =>Afro
air conditioning => air
ammunition => ammo
animation => anime
automobile => auto
biography => bio
blotted (drunk) => blotto
brazier => bra
business => biz
calculus => calc
capital letters => caps
carbohydrates => carbs
celebrity => celeb
chemotherapy => chemo
Chevrolet => Chevy
chimpanzee => chimp
chrysanthemum => mum
combination => combo
condensation trail => contrail
comfortable=> comfy
Communist => commie
condominium => condo
confabulation => confab
confidence (game) => con
Congregational => Congo
congratulations => congrats
convict => con
conversation => convo
cooperative => cop
credentials => creds
debutante => deb
decaffeinated coffee => decaf
delicatessen => deli
demonstration => demo
dinosaur => dino
discotheque => disco
disrespect => dis
electronic mail => email
exposition => expo
ex-wife/husband => ex
fabricate => fab
fabulous => fab
fanatic => fan
gentleman => gent
God be with ye => goodbye
governore => gov
gymnasium => gym
hackney => hack
head shrinker => shrink
high fidelity => hi-fi
hiya doin'? => hi
homosexual => homo
Howard Johnson => HoJo
hyperactive => hyper
hyperbole => hype
hypodermic => hypo

improvisation => improv
information => info
intelligence => intel
intercommunication system => intercom
introduction => intro
kleptomaniac => klepto
laboratory => lab
Labrador retriever => Lab
legitimate => legit
liberation => lib
limousine => limo
literature => lit
logogram => logo
luncheon => lunch
mathematics => math
maximum => max
mayonnaise => mayo
medications => meds
memorandum => memo
methamphetamine => meth
microphone => mic, mike
miniature => mini
modern => mod
modification => mod
monophonic => mono
mononucleosis => mono
narcotics => narco
neoconservative => neocon
nuclear devices => nukes
obituary => obit
omnibus => bus
panorama => pan
pantaloons => pants
parenthesis => paren
pectoral muscles => pecs
penitentiary => pen
perambulator => pram
percolate => perk
perquisite => perk
perpetrator => perp
phonograph => phono
photograph => photo
physical education => phys ed
physiognomy => phiz
pianoforte => piano
popular => pop
pornography => porn, porno
Postmodernism => Pomo
preliminary => prelim
premature baby => premy
preparatory => prep
prepare => prep
professional => pro
professor => prof
proletariat => prole
promotional => promo
propeller => prop
property (theater) => prop
psychology => psych

psychopathic => psycho
quotation => quote
rapport => rap
recapitulation => recap
reconnaissance => recon
recreation => rec
refinanced mortgage => refi
refrigerator => fridge
rehabilitation => rehab
reinforcement bar => rebar
representative => rep
repossession => repo
reproduction => repro
requisition => req
retrospective => retro
reverberation => reverb
revision => rev
revolutions => revs
rhinoceros => rhino
saxophone => sax
schizophrenic => schizo
science fiction => sci fi
second => sec
semitrailer => semi
servomechanism => servo
situation comedy => sitcom
sodium hyposulfite => hypo
south of Houston => SoHo
specification => spec
statistics => stats
stenography = > steno
stereophonic => stereo
Stradivarius => Strad
submarine => sub
substitute => sub
superintendent => super
suspect => suss
synchronization => sync, synch
synchronous => synchro
tar macadam => tarmac
tarpaulin => tarp
technology => tech
telephone => phone
temporary help => temp
topographical => topo
tugboat => tug
turbocharger => turbo
typographical error => typo
vacuum cleaner => vac
vegetables=> vegies
vegetate => veg
veteran => vet
veterinarian => vet
vibraphone => vibes
vibrations => vibes
violoncello => cello
Web log =>blog
weird person => weirdo
Wireless Fidelity => Wi-Fi