Was Crocodile stronger at Marineford? Or was he holding back in Alabasta?

 During the Alabasta arc, Crocodile displayed a level of power that was initially considered overwhelming by the Straw Hat Pirates. He possessed the Logia-type Devil Fruit called the Suna Suna no Mi (Sand-Sand Fruit), which granted him the ability to control and transform into sand. He had a reputation as a Shichibukai and controlled the desert kingdom of Alabasta from the shadows. His strength was showcased through his battles with Luffy and others. At Marineford, Crocodile was present as part of the war that took place at Marine Headquarters. While he did participate in the battle, he didn't display the same level of dominance as some other powerful characters present. This has led fans to speculate that he might not have been as strong as initially portrayed in Alabasta. It's important to note that power scaling and character abilities can be subject to interpretation and development by the author. Oda often keeps details deliberately open-ended to keep the story intriguing.

What is a “pleb” in ancient Rome?

 In ancient Rome, the term "pleb" (short for plebeius) referred to a member of the plebeian class, which was a social class that was lower in status than the patrician class. The plebeian class included commoners, such as farmers, artisans, and merchants, as well as some lower-ranking officials and soldiers.

The plebeian class had limited political and legal rights, and they were often subject to the authority of the patricians, who were members of the aristocracy and held the highest positions in Roman society. However, the plebeians played a significant role in the economy and social life of ancient Rome, and over time, they were able to gain greater political and legal rights and increase their influence in Roman society.