UK vs US Prepositions — Comparison
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You are typing a message about a match and you stop over one tiny word: is it at the weekend or on the weekend? Both sound right, depending on who you ask — and that is the whole story with British and American prepositions. The little words (at, on, in, to, by) mostly behave the same, but a handful of them flip across the Atlantic. This page lines up the ones that actually differ, so you are not second-guessing the ones that do not. If you want the full tour of what a preposition even is, that is in What Is a Preposition?.
Time
- at / on the weekend — Britain says at the weekend; America says on the weekend. I play football at the weekend (UK) / on the weekend (US).
- Christmas and holidays — UK at Christmas, US often on Christmas for the day itself. Both keep in the summer holidays / on vacation going their own way too.
- The everyday ones — at three o'clock, on Monday, in July — do not change. Those you can trust everywhere.
Place
- in / on a team — you are in a team in British English, on a team in American English. She is in the netball team (UK) / on the netball team (US).
- in / on a street — UK in Baker Street, US on Baker Street.
- at / in school and hospital — British English drops the the: he is in hospital, she is at school. American English keeps it: in the hospital. (Both say at school for the general idea, though.)
Movement and direction
Movement prepositions mostly agree — you go to school, into a room, through a tunnel, across a bridge on both sides. The one you will notice is informal American "a block down" or "a couple blocks over" where British English would say "down the road" or "a few streets away" — but that is casual speech, not a rule you need for writing.
"Different to / from / than"
This one trips up everybody, because all three exist:
- different from — safe everywhere, and the one to use if you are unsure.
- different to — common and fine in British English (my school is different to yours).
- different than — normal in American English (different than yours).
Pick different from in an exam and no one can mark you down.
Verbs that take a fixed preposition
Some verbs come glued to a particular preposition, and the glue is sometimes different on each side:
| British | American |
|---|---|
| fill in a form | fill out a form |
| write to someone | write someone (no "to") |
| talk / speak to | talk / speak with |
| cater for | cater to |
| protest against | protest (no "against") |
These fixed pairings are called dependent prepositions — the pattern, and the trick for learning them, is in Dependent Prepositions. There is no logic to memorise; you meet the pair and keep it. And most pairs are the same on both sides (depend on, good at, interested in), so only the handful above need care.
A couple more that catch people out
- on / at the front — American English says the students in back and in front; British English keeps at the front and at the back of the class or the queue.
- round / around — British English is happy with round (we walked round the park); American English prefers around. Both understand each other; it is just a habit.
- by / through — for dates, British English often says by Friday where American English might add through Friday to mean "up to and including". Worth noticing when a deadline matters.
None of these change the sentence — they swap one small word — but they are the sort of thing a reader clocks, so it is worth matching them to your variety.
The reassuring bit
Most prepositions do not change. In, on, at, by, to, from behave the same way for time and place on both sides of the Atlantic — the full system is in Prepositions of Time, Place & Movement (UK). Only the small handful above actually flip. So you do not need to relearn prepositions for American English — you just need to spot the few that swap, and match whichever variety your writing is in. As always, pick one variety for a piece of writing and keep to it the whole way through, rather than mixing at the weekend and on the team in the same paragraph.
Where next
- Parts of Speech — the young-learner hub — the bigger map this sits inside
- Dependent Prepositions — the fixed pairings like good at, depend on
- What Is a Preposition? — the little words this is all about
- Prepositions of Time, Place & Movement (UK) — in, on, at, by in full