Which dictionary is used as a basis for libreoffice?

I am wondering which dictionary is used and why some common words such as “globalization” are not included? I know it can be added manually but I am annoyed that each time I reinstall it on a new machine, it’s missing again.

How exactly did you do the installation on what OS? Please provided all steps you took to install.

I use the En-GB and the En-USA dictionaries. The default American recognises “globalization” the English (GB) recognises both “globalization and globalisation”. I loaded the EN-GB language pack to the default system. What settings have you set in the OPTIONS > LANGUAGE SETTINGS > LANGUAGE?

Refer this question. It is always possible to add your required words / terms to a user dictionary, which is saved under the user profile, and then copy this file to a new install.