https://en.wikipedia.org/wiki/Comparison_of_American_and_British_English
https://en.wikipedia.org/wiki/American_and_British_English_pronunciation_differences
https://en.wikipedia.org/wiki/American_and_British_English_grammatical_differences
https://en.wikipedia.org/wiki/American_and_British_English_spelling_differences
https://en.wikipedia.org/wiki/Lists_of_words_having_different_meanings_in_American_and_British_English
British prefers present perfect tense over simple past tense
Possession: have got over have and have got to over have to.
| British | American |
|---|---|
| Have you done your homework yet? | Did you do your homework yet? |
| I’ve already eaten. | I already ate. |
| I’ve got two sisters. | I have two sisters. |
| I’ve got to go now. | I have to go now. |
| He’s got much better at playing tennis. | He’s gotten much better at playing tennis. |
Differences in prefix and suffix forms:
aeoroeovere-seover-ze-reover-er-ourover-or-ogueover-og
British also prefers doubled consonants, and an added e.
| British | American |
|---|---|
| aeroplane | airplane |
| cancelled | canceled |
| catalogue | catalog |
| centre | center |
| cheque | check |
| colour | color |
| defence | defense |
| dialogue | dialog |
| faeces | feces |
| flavour | flavor |
| grey | gray |
| humour | humor |
| judgement | judgment |
| labour | labor |
| licence | license |
| loveable | lovable |
| metre | meter |
| modernisation | modernization |
| mum(my) | mom(my) |
| oestrogen | estrogen |
| patronise | patronize |
| programme | program |
| recognise | recognize |
| routeing | routing |
| skilful | skillful |
| theatre | theater |
| traveller | traveler |
| whisky | whiskey |
| British | American |
|---|---|
| angry | mad |
| anticlockwise | counterclockwise |
| arse | ass |
| aubergine | eggplant |
| autumn | fall |
| bank note | bill |
| bin | trash can |
| biscuit | cookie |
| block of flats | apartment building |
| braces | suspenders |
| bonnet | hood |
| boot | trunk |
| car park | parking lot |
| chemist's | drugstore, pharmacy |
| chips | french fries |
| courgette | zucchini |
| crisps | potato chips |
| cupboard | closet |
| draw | tie |
| first floor | second floor |
| flat | apartment |
| full stop | period |
| ground floor | first floor |
| indicator | blinker |
| jacket potato | baked potato |
| jumper, pullover | sweater |
| lift | elevator |
| loo | restroom |
| lorry | truck |
| nappy | diaper |
| mobile phone | cell phone |
| motorway | highway |
| moustache | mustache |
| pavement | slidewalk |
| petrol | gas, gasoline |
| peckish | hungry |
| phone box | phone booth |
| pitch | field |
| post | |
| postcode | zip code |
| queue | line |
| rubber | eraser |
| rubbish | trash |
| runner bean | string bean |
| solicitor | attorney |
| sweets | candy |
| takeaway | takeout |
| tap | faucet |
| telly | tv, television |
| timetable | schedule |
| torch | flashlight |
| trousers | pants |
| trainers | sneakers |
| tube, underground | subway |
| tyre | tire |
| waistcoat | vest |
| windscreen | windshield |