What does Hilal mean?
Hilal is the Arabic word for the new crescent moon that marks the start of a lunar month. Used for both genders (predominantly feminine in Turkey). A literal moon name.
What does Qamar mean?
Qamar is the Arabic word for 'moon,' used as a given name for both boys and girls; it also names the 54th sura of the Quran (Al-Qamar). Literal and well established.