What are some examples of euphemisms?

Euphemisms and Polite Terms

abattoir - slaughterhouse
adult beverages (beer and booze)
adult entertainment - pornography
big boned- fat
collateral damage (accidental deaths)
correctional facility - prison
custodian (janitor)
departed - deceased
developmentally challenged (disorders like autism)
differently abled (disabled or handicapped)
disabled - handicapped
domestic engineer (maid)
downsize (fire)
d-word (economic depression)
escort service (prostitution)
fender bender (auto accident)
furlough (fire)
hankie Pankie - sexual intercourse
husky (heavy)
lay-off (fire)
letting someone go (fire someone)
making love (sexual intercourse)
misinformation, untruths (lies)
nuclear deterrent (nuclear weapons)
number twos (faeces)
on the streets - homeless
overrun (higher cost than agreed)
overweight (fat)
partially proficient (unqualified, failed, or unsatisfactory)
passed away- died
pleasingly plump (overweight)
portly (fat)
powder one's nose (use restroom)
pregnancy termination (abortion)
pre-owned (used)
privates (genitals)
put to sleep (euthanise)
restroom- bathroom
sanitation engineer (garbage collector)
Scottish Play (MacBeth)
shaped (slowed internet connection speed.
sleep together (engage in sexual intercourse)
supervisor - boss
terminological inexactitude (lie)
r-word (economic recession)
under the weather (sick, ill)
undocumented worker (illegal alien)
unmotivated (lazy)
vertically-challenged (short)
A good example of a euphemism would be the use of the phrase "mobile community" instead of trailer park, or "assisted living facility" for a retirement home. generally a more pleasant name for something that might not have the best connotations.