The dictionary supplied with LibreWriter doesn’t contain many words that are in most dictionaries. The thesaurus is maybe at a fifth grade level. They are poor even when compared to Word’s dictionary. One possible solution is to devise a click-through link to dictionary.com and thesaurus.com. As a Word user, I had those two resurces linked into the software. You could do the same, and elevate LIbreWriter to where it needs to be.
you should realise LO is made by users and to users, so if you want to improve sth, go ahead and become a developer…
Second thing is that dict and thes are constantly in ‘learning mode’ so the more you use them, the ‘smarter’ they get…