ML question - Need help on this

Hey,

So I've around 200K unstructured keywords, for example (sports, music, piano, cryptocurrency, facebook). I mean, they are not categorized in any way. I need a way to categorize these keywords under relevant categories "OR" sub-categories "OR" sub-sub-categories.

For instance

Sports (main category)
_____________
Cricket (sub)
Wrestling (sub)
Soccer (sub)
_____________
Ronaldo (sub-sub)
Soccer Accessories (sub-sub)
_____________
Soccer shoes (sub-sub-sub)

Can this be done?

I suggest you look at NLP (Natural Language Processing), this should understand key things to each text you analyse, such as sentiment, saliency and what you're looking for, topic.
There are several easy to use NLP platforms, Microsoft, AWS and Google all have well trained NLP models.

I've also been wondering about this the last few days, but I'm considering it to may be too much of a hassle, given the existence of Ahrefs/SEMRush, where I figured I could just plug in keywords and I'd get a parent topic. I'd try it just for fun and learning purposes, but priorities I guess.

But yeah, I think you'll get some pretty good results if you google something like classify keyword topics nlp

If you're not into coding there are platforms such as MonkeyLearn (I think) or Google AutoML that make things like this more accessible to non coders.