Names, Surnames & Titles

Keeping the name "Nuha"

Q: My husband and I are having our first child and we wanted your advice regarding a name we have chosen, Nuha. According to our understanding it means intelligence/wisdom. Please advise the correct spelling and if this is a good name to keep for our soon to be baby girl.

Keeping two names

Q:

1) When 2 names are kept, eg Faathimah Zahraa, then is it fine -or not advisable- to call by only one of the names at times. Eg calling the child sometimes by both names, sometimes only faathimah, sometimes zahraa, is this fine?

2) When calling by both names together, would it be pronounced Faathima-tuz-zahraa', or Faathimah zahraa', or would both be fine to say?