Often considered the most fully developed, comprehensive and practical approach to cross-linguistic and cross-cultural semantics, Natural Semantic Metalanguage is based on evidence that there is a small core of basic, universal meanings (semantic primes) that can be expressed in all languages. It has been used for linguistic and cultural analysis in such diverse fields as semantics, cross-cultural communication, language teaching, humour studies and applied linguistics, and has reached far beyond the boundaries of linguistics into ethnopsychology, anthropology, history, political science, the medical humanities and ethics.