Rosanna sits next to 5 phonetic neighbors — Rosanne, Roxanna, and Giovanna are the closest matches by sound. Most share Rosanna's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"gracious rose"
"noble, of noble kind (if from Adal/Ali roots)"
"beautiful, fine, delicate"
"gentle strength, mild power"
"flame, light"
"Woden's day"
"from the forest, woodland"
"Soft-haired, youth"
"transparent, pure, sparkling"
"grace, favor"
"heavenly, sky, royal"
"berry meadow"
"river and pool, flowing water"
"heavenly, sky princess"
"tailor, one who cuts cloth"
"the name of Sequoyah, creator of the Cherokee syllabary"
"elf ruler, supernatural power"
"hyacinth (flower)"
"sea of bitterness plus grace"
Similar sound: These names share phonetic patterns with Rosanna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin and Hebrew compound origins, giving them the same cultural heritage as Rosanna.
Rhythm: Rosanna is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.