is this the same word as for advertisement
no that would be "פרסומת"
but they are related?
What does that even mean, (a famous dress)?
A famous dress might be the princess's wedding gown, for example, or perhaps what Marilyn Monroe was wearing when she was photographed standing over that breezy grate.
what would make a dress famous?
People arguing over what color it is
Ha-dugmanit loveshet simlah mefursemet.