Questions about example sentences with, and the definition and usage of "Namesake"

A: Someone whose name is used later by someone else. If you were given your father's name, your father is your namesake.

A: self-explanatory is something that doesn't need an explanation after you see/know it's name. Examples:

Fire-fighter (you don't need anyone to tell you what this person does, he/she fights fire);

frying pan (by the name you know its a pan used for frying).

Namesake is something/someone with the same name as another thing/person. Example:

You, Ashiley, meet a girl named Ashiley, she is your namesake.

A: natural

A: Namesake is for when you are named after someone. If my parents loved Barack Obama and named me Barack, then Barack Obama would be my namesake.

There is no such thing as being namesakes.

A: Not gonna lie, as an American I have no idea what namesake means.

A: In this sentence, "his oldest son and namesake" means Donald Trump Jr. He's called his "namesake" because they have the same name.