Khai sits next to 3 phonetic neighbors — Kai, Sky, and Faye are the closest matches by sound. Most share Khai's Vietnamese-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"joy, happiness"
"woodland meadow clearing"
"lightning, fulfillment"
"little angel"
"heavenly, divine blossom"
"hazel nut, symbol of wisdom"
"spirited, full of energy"
"white phantom, fair spirit"
"who is like God?"
"dream, vision (via Aisling connection)"
"gracious meadow"
"broad island (alternative etymology)"
"sun"
"blessed, fair one"
"transparent, clear"
"fair, lovely"
"jewel of the Lord"
"beautiful, fair"
"beloved beauty"
"greatest, largest (from Latin Maximus)"
Similar sound: These names share phonetic patterns with Khai — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Vietnamese origins, giving them the same cultural heritage as Khai.
Rhythm: Khai is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.