Cammie showed with all our wishes.

alliance
acceptance
purpose
allowance
blessedness
brilliance
circumference
compliance
concordance
credence
dependence
effectiveness
gratitude
greatness
hindrance
insurance
loveliness
musician
nuisance
patience
reliance
residence
resistance

blessedness

Explanation:

it is the correct answer i guess

  this riddles' answer is library.

  the "leaves" are a reference to the books' pages that the library contains; the branches are a network of libraries that connect multiple libraries' collections, resources, and items in a system of a common database, integrating them; the branches' organization are a useful management tool for coordinating the multiple collections many libraries have.