I understand what you mean, but those are not grave or accute accent differences. In swedish T<o>mten and T<o>mt<e>n (for lack of a better way to show stress off the top of my head) the o and e both sound the same, but have intonation differences.

The vowel sound is different between past tense and present tense "read", even though they're spelled the same.

But that's not what's going on in the Swedish example above. The vowels are exactly the same between "anden" (the spirit) and "anden" (the duck), but the pitch accent is different, the "song" of the words is different.

Here's a video showing the difference:

https://www.youtube.com/watch?v=lXp7_Sjgm34

(And if you can't hear the difference in that video, don't worry too much, it's Swedish that's weird, not you. :) )

Polish is fine, but Polish should be capitalized. ;-)

I am wondering about your accent, though, because, to me, "bow" is pronounced the same in both of those examples. Robin hood shooting an arrow from his bow, however, has a different pronunciation which is the same as the bow tied on my present.

He/she might mean the bow of a ship? If I am not completely wrong about my English pronunciation, that is.

Yes, the bow of a ship is pronounced the same as taking a bow. At least, it is in my accent.

https://www.dictionary.com/browse/bow agrees indicating IPA baʊ for both.

I should read the parent comment before replying.

I just assumed they meant bow as in bow and arrow. The other example I did not know. "Read before you think before you write".

It also has words that are pronounced the same despite of context, cf. Buffalo buffalo buffalo Buffalo buffalo ;)

Ever-relevant poem: http://ncf.idallen.com/english.html

English is kind of a hot mess.