Abstract
This article systematically examines the major diKerences between British English (BrE) and American English (AmE) across vocabulary, spelling, pronunciation, grammar, and language use. The study argues that these diKerences stem from historical, geographical, and social factors, particularly the migration of English settlers to North America in the 17th century and the subsequent independent development of the language. The 'ndings indicate that American English tends to be more simpli'ed, innovative, and direct, whereas British English retains more traditional and formal features. Despite these diKerences, mutual intelligibility remains high. The study highlights the importance of understanding these distinctions in the context of globalization and intercultural communication.
Keywords: American English (AmE), British English (BrE), historical and socio-cultural factors, intercultural communication, linguistic variation.