Updated: May 25, 2020
The BIM Dictionary is a free resource.
It includes hundreds of Dictionary Items: terms with their descriptions, abbreviations and synonyms. Each Dictionary Item has its own page so it can be easily referenced in documents and websites.
The user interface and database have been completely rebuilt for a greater user experience.
You can search terms, search text, add notes and create/embed a list of your favourite terms!
BIM Dictionary website