Interested in Language
Never heard "settee" before.
I am a 61 year-old American English speaker.
The bold words are the ones I hear or say most commonly, except where noted.
apartment (always) - flat
Baggage - luggage
biscuit - cookie (different items in AmE)
couch - sofa (interchangeable, usually couch)
elevator (always)- lift
autumn - fall (interchangeable)
mail (always)- post
reserve - book
lorry (never)- track (always truck)
hoover - vacuum cleaner (always)
shop - store
shedule - timetable (interchangeable)
shorts - briefs (shorts are short pants; briefs are underpants)
line (always)- queue
movie - film
chips (always)- crisps
railway - railroad
undergroun - subway (always)
I remember reading once how interesting it is that in England the Royal Mail delivers the post and in America the Post Office delivers the mail.
Regarding "fall" and "autumn"--fall is the word you're going to hear in casual conversation. Someone will say "I've booked a trip to Hawaii this fall". If you were writing a news article about seasonal rainfall, OTOH, you might well say "autumn", or a Macy's brochure about seasonal fashion might say "autumn".
Fall and autumn are an example of what people say about American English preserving some usages. IIRC "fall" was used in England to describe the season up until the middle of the 19th century or so.
apartment - flat flat
Baggage - luggage luggage
biscuit - cookie biscuit
couch - sofa (both)
elevator - lift lift
autumn - fall autumn
mail - post mail
pants -trousers pants (mostly) trousers (sometimes)
reserve - book book (mostly) reserve (sometimes)
lorry - truck truck
hoover - vacuum cleaner vacuum
shop - store shop
schedule - timetable timetable (mostly) schedule (sometimes)
shorts - briefs shorts
line - queue (both)
movie - film film (mostly) movie (sometimes)
chips - crisps ..usually say potato chips for "crisp" type, and chips for "fish & chips" type.
railway - railroad railway
underground - subway subway
New Zealander, also lived in UK, Europe and Australia.
I concur largely with JMurray.
shorts - briefs: Shorts are short pants, briefs are undies.
movie - film: Mainly movie.
apartment - flat (75%)
Baggage - luggage (100%)
biscuit - cookie (almost 100%)
couch - sofa (90%)
elevator - lift (not sure, probably 50/50)
autumn - fall (100%)
mail - post (100%)
pants -trousers (depends on who I talking to)
reserve - book (100%)
lorry - track (truck 100%)
hoover - vacuum cleaner (80%)
shop - store (60%)
shedule - timetable (70%)
shorts - briefs (100%, didn't know the other word)
line - queue (70%, depends on who I'm talking to)
movie - film (50/50)
chips - crisps (95%)
railway - railroad (80%)
underground - subway (not sure, depends on who I'm talking to)
Poland, some time spent in both the UK and the US.