Word for Mac document full of red underlining - how to get rid of them

I use both English and/or Finnish and/or Hungarian and/or Romanian.

The non-English text is loaded with red squiggly underlining (auto correct).

I've turned off all auto correct, added foreign keyboards - which switches the squiggly red underscores to the English words.

My (volunteer) work is done on three 27 inch screens, with at least three browsers a/o documents on each screen on a light day. (Four browsers are needed, the rest are documents.) And yes, it's barely enough.

Subsequently, while a small font, for instance 12pt would be ideal, even with 14pt it is extremely difficult for old eyes to distinguish the text, accents, etc.

Does anyone know how to turn off the squiggly lines?

Presently running Ventura 13.6.7 with 16GB memory.

Thank you.