Lillianna sits next to 5 phonetic neighbors — Liliana, Lilianna, and Lilliana are the closest matches by sound. Most share Lillianna's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"lily flower"
"beloved, sea of bitterness (Mary)"
"beautiful sky"
"favored, kind"
"to love deeply, to worship"
"sea (via Kai)"
"orchid (Cattleya genus)"
"laurel, victory"
"woman of the tribe"
"clarity, joy, happiness"
"heavens and flowing water"
"knowledge, wisdom"
"the blue princess (fictional)"
"path, road (Old English)"
"abundant in wild olives"
"heavenly mist"
"tile maker, roofer"
"standing up again, rebirth"
"famous rose"
"timid (from Bilhah)"
"from Rome, Roman; the Anatolian"
Similar sound: These names share phonetic patterns with Lillianna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin/Greek origins, giving them the same cultural heritage as Lillianna.
Rhythm: Lillianna is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.