Learner's Dictionaries and Reference

Browse dictionaries specifically created for learners of English


Browse COBUILD grammar reference and practice titles

COBUILD dictionary online

Use the COBUILD dictionary online for free

The History of COBUILD

What is COBUILD and how did it develop?

Who created COBUILD?

Find out about Professor John Sinclair, linguist and Founding Editor-in-Chief of the first COBUILD dictionary

The Collins Corpus

What is the Collins Corpus and how is it used to inform our ELT range?