What is the ruling on naming a newborn girl "Tala," "Nada," or "Raghad," and what are the meanings of these names?

The basic principle concerning naming is permissibility, unless the name includes a Sharia-forbidden element, such as servitude to other than Allah, imitation of disbelievers, or promoting false beliefs. There is no objection to naming with "Raghad," which means spaciousness and abundance, nor with "Nada," which means rain and generosity. As for "Tala," its meaning is unknown, and it is better not to use it for naming.