Looking on the internet deeply has found these results:

negro is the most popular phrase on the web.

nigga 150,500,000 results on the web	negro 1822,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
You better pause the game, nigga. Make it so every nigga sound like Condoleezza. He died because of some other shit, nigga. Yo, nigga, give me that shit. Go on, nigga, hit this shit. They saw your ghetto ass coming from miles away, nigga. Shit, nigga, I had to ask. A nigga step in my house, he getting dropped.	And he was the first negro editor of the Harvard Law Review. The first negro doctor I've ever seen. You're not familiar with the history of medical research in the negro community. Ed said all negro music was. You know I had arrived in Louisiana the day after a sheriff shot and killed a negro just for registering to vote. You mean "the coloured guy", "the negro". Yet we believe the negro community here could actually benefit from our study.

nigga

150,500,000 results on the web

negro

1822,000,000 results on the web

More popular!

And he was the first negro editor of the Harvard Law Review.
The first negro doctor I've ever seen.
You're not familiar with the history of medical research in the negro community.
Ed said all negro music was.
You know I had arrived in Louisiana the day after a sheriff shot and killed a negro just for registering to vote.
You mean "the coloured guy", "the negro".
Yet we believe the negro community here could actually benefit from our study.