Lucia sits next to 3 phonetic neighbors — Lucy, Luisa, and Lucie are the closest matches by sound. Most share Lucia's Italian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"light, illumination"
"God is my strength"
"life"
"divine wisdom, holy insight"
"gift of God"
"noble, exalted (via Alice)"
"petite, strong"
"symbol of purity and rebirth"
"descendant of Riagan"
"short form of Giovanna or Gianna"
"short form of names ending in -lia"
"God has answered me"
"island"
"lady, queen"
"precious green stone"
"night"
"woman from Magdala (tower)"
"peaceful, tranquil place"
"princess, noblewoman"
"entire, all-encompassing"
"concord, unity of parts"
Similar sound: These names share phonetic patterns with Lucia — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin (Lucius/Lux) origins, giving them the same cultural heritage as Lucia.
Rhythm: Lucia is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.