Part 1: what is a word?; methods in lexicology - the dictionary; methods in lexicology - the thesaurus; history of lexicology - India, China, the Islamic World, Europe; evolution of the dictionary and thesaurus in England; recent developments in lexicology; sources and resources. Part 2: etymology; prescription; grammar, syntax and lexicogrammar; semantics; language and reality; language and society; language and cognition; language and computation; language and languages; translation. Part 3: corpus linguistics as a theoretical approach; corpus typology; corpus linguistics and language; the minimal assumption postulate; research and development; corpus semantics; multilingual semantics; multilingual corpus semantics; applying multilingual corpus semantics; semantics and the multilingual corpus.