How to get Microsoft Word to recognize Thai words added to the custom spelling dictionary?

[nitayagirl]

Some words that I add to the custom dictionary are still underlined in red as spelling mistakes.

 

For example:

 

คริปโทเคอร์เรนซี (cryptocurrency)

ดิจิทัล (digital)

 

Here they are in the custom dictionary:

 

 

And here is the spelling checker saying they are not in the dictionary:

 

---

 

I have the proofing language of the document set to "Thai" and in proofing options I have "Suggest from main dictionary only" deselected.

[Badger18]

Looks to me as if those dialogs are actually saying that คริป and ดิ are not in the dictionary, not that คริปโทเคอร์เรนซี and ดิจิทัล aren't. In other words it's a word boundary issue. I didn't know MS Word did Thai spellchecking at all. I would have assumed not because of the difficulty of identifying the word boundaries. What happens if you insert a zero-width space after each word?

[nitayagirl]

Thai spell check works quite well on the whole. See sample text below showing only a few words that MS Word thinks are spelling mistakes.

 

I tried messing around with zero-width spaces (MS Word: no-width optional breaks and no-width non breaks) as suggested, but that didn't help.

[Badger18]

Looks like it doesn't check the custom dictionary until it's decided on the word boundaries. It finds โท in the main dictionary so looks for คริป and draws a blank. It doesn't find any part of ดิจิทัล but still guesses that ดิ is a separate word. If you can't override this behaviour with spacing (so the program goes "this is a spaced document - no need to guess word boundaries") I suspect you're stuck with it. My version of Word does have a "Nonbreaking space" character, shortcut CTRL + SHIFT + SPC. It could be that the whole document has to be spaced to get it to stop guessing.