What is the definition of a Yonko in the One Piece manga/anime

One Piece Finally Explains Shanks' Powers

One Piece: Who Are Yonkos Explained - Anime Explained

One Piece Characters Who Could Become Emperors

Every Yonko in One Piece, ranked according to strength

One Piece: 10 Things You Didn't Know About The Yonko

How Do You Become A YONKO One Piece Discussion

One Piece (season 19) - Wikipedia

One Piece Chapter 1010: Is Orochi dead or alive after Scabbards Fight?

Colored the Emperors from Ch-1053 : r/OnePiece

Luffy only raises 3 Fingers when telling Law that He wants to take down all Yonkos. : r/OnePiece

One Piece: Why didn't Law and Kid become Yonko like Luffy? - Dexerto