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British vs. American English Differences

Sep 12, 2025

Overview

This lecture explains the main differences between standard British English and American English in terms of vocabulary, pronunciation, spelling, and grammar.

Vocabulary Differences

  • US: “garbage” or “trash”; UK: “rubbish” (both literal and figurative).
  • US: “vacation”; UK: “holiday(s)”.
  • US: “apartment”; UK: “flat”.
  • US: “first floor” (at street level); UK: “ground floor”.
  • US: “elevator”; UK: “lift”.
  • US: “TV”; UK: “telly”.
  • US: “sidewalk”; UK: “pavement”.
  • US: “subway”; UK: “underground”.
  • US: “pants” (outerwear); UK: “trousers” (outerwear), “pants” means underpants.
  • UK: “knickers” (women’s underpants); US: “panties”.
  • UK: “pants” as an adjective means “crappy” or “bad”; US: “sucks”.

Pronunciation Differences (Accent)

  • American English is rhotic (pronounces “r” clearly); British English (RP) is non-rhotic (drops “r” unless followed by a vowel).
  • British English sometimes adds an “intrusive r” between words ending and starting with vowels (e.g., “saw a” sounds like “saw-r-a”).
  • US “t” between vowels often sounds like a tap /ɾ/ (e.g., “butter”); UK keeps a hard /t/ sound.
  • US “o” is often unrounded /ɑ/; UK “o” is rounded /ɒ/ (e.g., US “hot” /hɑt/, UK “hot” /hɒt/).
  • US “know” /noʊ/; UK “know” /nəʊ/.
  • UK “a” as /ɑː/ becomes /æ/ in US (UK “half” /hɑːf/, US “half” /hæf/).
  • Some words with “a” + “rr” in US use /e/ (US “marry” /ˈmɛɹi/; UK “marry” /ˈmæɹɪ/).

Spelling Differences

  • UK “~re” vs. US “~er”: centre/center, theatre/theater.
  • UK “~nce” vs. US “~nse”: licence/license, defence/defense.
  • UK “ou” vs. US “o”: colour/color, favour/favor.
  • UK “~ise” vs. US “~ize”: organise/organize, analyse/analyze.
  • UK doubles “l” when adding suffixes; US does not: travelled/traveled, cancelled/canceled.

Grammar Differences

  • UK uses “shall” for the future and advice more often than US.
  • Prepositions differ: US “on the weekend”; UK “at the weekend”.
  • Past tense forms: US “learned/dreamed”; UK “learnt/dreamt”.
  • US “dove” (past of dive); UK “dived”.
  • Past participle: US get/got/gotten; UK get/got/got.
  • Vocabulary in context: US “lawyer”; UK “solicitor” (consultant), “barrister” (court).
  • US “going for a beer with friends”; UK “going for a pint with mates”.

Key Terms & Definitions

  • Rhotic — Pronounces “r” sounds clearly in all positions in a word.
  • Non-rhotic — “r” sounds are dropped unless followed by a vowel.
  • Intrusive r — Adding an “r” sound between words when the first ends in a vowel and the next begins with one.
  • Received Pronunciation (RP) — Standard British English accent.
  • General American — Standard US English accent.

Action Items / Next Steps

  • Contribute additional differences between British and American English as comments.
  • Review key vocabulary and pronunciation examples for reference.