Addison sits next to 3 phonetic neighbors — Madison, Allison, and Emerson are the closest matches by sound. Most share Addison's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"son of Adam"
"willow tree"
"bright red color"
"work, industriousness"
"industrious, striving"
"royal fortress meadow"
"shelter, sanctuary"
"one who will rise again"
"God will increase"
"consecrated to God"
"crowned one"
"play, amusement"
"royal child of heaven"
"treeless plain, open grassland"
"divine grace, blessing"
"the sea"
"dawn"
"the loved one"
"noble, of noble kind"
"bay laurel"
"rye clearing, from Old English ryge leah"
Similar sound: These names share phonetic patterns with Addison — 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 Addison.
Rhythm: Addison is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.