Licence to Convert Dictionary to Spell-Checker Dictionary

[Richard Wordingham]

One way of producing a spelling dictionary is to take the words from
a near-normal dictionary and use them.  Does publishing such a
dictionary require the permission of the dictionary's copyright
holder?  If it's relevant, the dictionary was published in Thailand.

I appreciate that one ought to do a lot more work than just that step
to make a good spelling dictionary.

If I need permission, what licences would be suitable for making the
spelling dictionary available via LibreOffice?

Richard.