The word "you" and the sound "/u/"

[Super Sonic]

I want to know what they are. I mean, are they homonyms, homographs or etc.? And please with explanations. Thank you:)

[Casiopea]

Homograph, same spelling, different sound, different meaning
Homophone, different spelling, same sound, different meaning
Homonym, same spelling, same sound, different meaning.

Homophones: ewe, yew, you, U

[Casiopea]

Heteronyms are a type of homograph. They are words that are spelled the same but differ in meaning and pronunciation. All heteronyms are also homographs, but not all homographs are heteronyms. Many heteronyms are similar in meaning (especially a related noun and verb are spelled the same but pronounced differently), while others are wholly unrelated.

See more here...

[Casiopea]

Here's a list of multinyms.

[Super Sonic]

Thank you so much, sir.

[Casiopea]

You're very welcome.