Arabic lesson for the day:

"Mubarak" means blessed. "Mabrook" means congratulations.

As Mrs. Duck said, you say "Eid Mubarak" (Blessed Feast!) at the end of Ramadan, not during. "Ramadan Mubarak" makes sense as a mid-Ramadan greeting but I can't remember using it.

What is said a lot is "Kul sana wa anta tayib" (to a man) or "Kul sana wa anti tayeeba" (to a woman). It means roughly "May you be well every year", and is an all-purpose greeting you can use for any Muslim or Christian holiday or on someone's birthday.

Marion (three years of university Arabic and eighteen months living in the Middle East... a long, long time ago.)