pls! help me if you know what is the black hose actually called? it is leaking, so i wanted to order it, but don't know what is actually called

It looks like a radiator hose. It's kind of hard to tell from this pic alone. Are you visibly losing fluid in any reservoir (power steering or coolant)? What year/engine/transmission? It's really only going to be one of 3 things - oil, ATF+4, or coolant. Probably coolant.

If you can safely get it to a dealer, the parts guy should be able to tell you what hose that is specifically, and then order it from them.

Ok thank you so much for your information. I did not realiz it before, but my friend told me that i have some oil on my front absorber (right side). So i just took the picture where it is dripping. It looks really nasty. Btw, my car is journey sxt 2010.