-T-

Takeaway:
    Takeout

Tap:
    Faucet

Tarmac:
    Pavement, Asphalt

'Tea':
   Dinner, Supper

Teat (baby bottle):
    Nipple

'Telly':
    TV, 'the Tube'

Terraced House:
    Row House

Thousand Million:
   Billion

Tick (e.g. Tick the box):
   Check

Tights:
    Pantyhose, Nylons

Tick-Over:
    Idle

Ten-Pin Bowling:
   Bowling

Till:
   Cash Register

Tin (of food):
   Can

Tip:
   Dump

Toilet, Loo:
    Bathroom, Restroom, 'John'

Toilet Roll:
    Toilet Paper

Torch:
    Flashlight

"Touch Wood" (superstitious expression):
    "knock on Wood"

Towbar:
    Trailer Hitch

Traditional, Cloudy Lemonade:
    Lemonade

Trailer (film):
    Preview

Train Driver:
    Train Engineer

Trainers:
    Sneakers, Tennis Shoes

Treacle:
    Molasses

Trousers:
    Pants, Trousers

Tumble Dryer:
   Clothes Dryer, Dryer

-U-

The Underground, Tube:
    Subway

-V-

VAT:
    Sales Tax (And not 17.5% either!)

Vest:
    Tank Top

Video:
    VCR (as it should be)

Voucher (from the local paper):
    Coupon

-W-

Waistcoat:
    Vest

Walking (country):
    Hiking

Wallet:
   Billfold, Wallet

'Wank,' 'Wanker':
    'Beat-off,' 'Jack-off'

Wardrobe:
    Closet

Washing Up:
   Dishwashing

Wee:
    Pee

"Wellies":
    Rubber boots, galoshes

Welsh Dresser:
    Hutch

Whinge:
    Whine (pronounced like 'wine')

Whitehall:
    Washington, D.C.
The HQ's of all American government bureaus and departments lies in Washington, District of Columbia.
Washington, D.C. is NOT a state nor is it in a state. It is a separate entity from the 50 states. It borders very closely to the U.S. states of Virginia and Maryland.

Windcheater:
    Windbreaker

Windscreen:
    Windshield

Wing (car):
    Fender

Work Experience, Work Placement:
    Intern, Internship
('Hey mom, I've got a 6-month internship with CNN in New York City!' 'That's nice Alice, but you be careful in that big city..')

'Write-off' (car):
    'Total'
("Man, that dipstick Jack totalled his new pick-up last weekend!")

-Z-

Zimmerframe:
    Walker

Zebra Crossing, Pelican Crossing:
    Crosswalk, Pedestrian Crossing
(a bit of a better description don't you think?)

Zed:
    Zee