Clothing

anorak

a parka (there are lots of jokes about nerds/computer scientists who wear anoraks)

bobble hat

a wool hat (see woolly) with a pom-pom on top

body-warmer

down vest

braces

suspenders

breeches

knickers

cagoule

windbreaker

dinner jacket (DJ)

tuxedo (DJ also means disk jockey)

Doc Martens

a very popular brand of black work-boots

duvet jacket

down parka (see duvet)

flares

bell-bottoms

fleece

an outer garment made of that new, warm synthetic material (polar fleece). What is it called in the US??

frock

dress

jumper

sweater

knickers

(primarily women's) underpants

pants

(primarily men's) underpants (but ``getting into someone's pants'' is unisex)

pinafore

jumper (as in a woman's overall dress with bib and shoulder straps)

polo-neck sweater

turtleneck sweater

rubbers ?

maybe? rubber overshoes (see also rubber)

shell suit

a track suit (the shiny, windproof kind)

suspenders

things holding up women's stockings

tights?

waist-high pantyhose in general: I'm not quite sure of US usage in this case ...

trousers

pants (see pants)

vest

undershirt

waistcoat

vest (see vest)

windcheater

windbreaker

wellies

rubber boots

woolly

wool (as in ``woolly jumper/mittens/hat'')

trainers

running shoes

plimsolls

sneakers (the kind they wear in primary school: cloth uppers, white soles)