A Frequency Dictionary of Multi-Word Expressions in British English presents 5,000 of the most common multi-word expressions (MWEs) in contemporary British English, based on data from the British National Corpus 2014.

Organized into ten functional categories—including idioms, phrasal verbs, collocations, and academic or speech formulas—the dictionary provides detailed frequency, dispersion, and association metrics for each entry. Visual aids such as collocation graphs, sparklines and thematic boxes support comprehension and practical use. It is a comprehensive, research-based resource for understanding and using natural, high-frequency expressions in spoken and written English.

Additional support materials for this book are available at https://lancslex.lancaster.ac.uk .

Designed for learners, educators, and researchers, the dictionary highlights real-world phraseology across genres and registers.