Same spelling but different pronunciation.

So, we know homonyms. Same pronunciation but different spelling/meaning.

e.g. right and write

But, this word overseas has same spelling but different meaning/pronunciation.

adverb: overseas; /əʊvəˈsiːz/

in or to a foreign country, especially one across the sea. “he spent quite a lot of time working overseas”

adjective: overseas; /ˈəʊvəsiːz/

from, to, or relating to a foreign country, especially one across the sea. “overseas trips”

Is this also homonyms? Time to see its definition. It seems like. Are there more?