Kaci sits next to 5 phonetic neighbors — Casey, Kacey, and Kasey are the closest matches by sound. Most share Kaci's Irish-rooted cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"alert, watchful in battle"
"home power, estate ruler"
"castle, palace, fortress"
"noble strength"
"reddish-brown color, warmth"
"always blooming"
"pear tree"
"river and pool, flowing water"
"God is my oath"
"song, poem"
"culturally associated with grace and strength via Patrick Swayze"
"beautiful sea"
"free man (feminized)"
"full of happiness"
"torch, flame"
"open woodland clearing"
"berry meadow"
"bright one, torch"
"dignity, esteem, reputation"
"immortal, eternal"
"belonging to God, divine grace"
Similar sound: These names share phonetic patterns with Kaci — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Irish Gaelic origins, giving them the same cultural heritage as Kaci.
Rhythm: Kaci is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.