What is TEDDI? Why are there so many definitions in TEDDI?

The Terms and Definitions Database Interactive (TEDDI) is a database which contains all the definitions and abbreviations listed in publicly available ETSI deliverables. As all the definitions and abbreviations are automatically extracted it means that you can have more than one definition for the same word. Sometimes it is just a minor difference (e.g. in spelling) but also it depends on the Technical Body which produced the deliverable.