Leaf arrangement is opposite so not a peach or stone fruit. It’s hard to tell from the photo whether those are actually large pinnately compound leaves or single leaves. I lean towards the former. I’m not even sure if it’s something woody or a large herbaceous plant since we can’t see the main stem. Any chance of more pictures?

It looks like an Elderberry to me.

I wonder if it‘s a type of Syzygium?

I’m not very familiar with them, but the leaves look similar.

Taking the scale from the chain link, and stated size of 4 x 5” long, I don’t think it’s Elder. I don’t know Syzygiums but I suspect that dentate leaf margins and matt surface rule them out.

Agree with elder, including appearance of main stem.