Miller sits next to 3 phonetic neighbors — Millie, Mila, and Lily are the closest matches by sound. Most share Miller's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"one who mills grain"
"pure"
"little bird"
"pure"
"little bird"
"pure, clean"
"star"
"compassion, forgiveness, grace"
"candle maker, candle merchant"
"ascent, going up"
"pledged to God"
"leaping water"
"of the Caecilii, ancient Roman clan"
"you will always be loved"
"queen"
"coral, sea jewel"
"worthy of admiration, she who must be admired"
"crooked mouth"
"warrior, raider"
"beloved child"
"born on Christmas Day, birthday of the Lord"
Similar sound: These names share phonetic patterns with Miller — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Old English origins, giving them the same cultural heritage as Miller.
Rhythm: Miller is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.