Why are word potsherd and temper written in quotation mark?

The Words "potsherd" and "temper" are likely placed in quotation marks to indicate that they are being used in a specific or non-literal sense, potentially highlighting their significance or drawing attention to their meanings in a particular context. Quotation marks can also suggest that these terms are being defined, cited, or discussed critically. Additionally, they might indicate that the terms are being used metaphorically or in a way that deviates from their conventional usage.