Nihan sits next to 4 phonetic neighbors — Nihal, Nira, and Naira are the closest matches by sound. Most share Nihan's Persian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"hidden, secret"
"night (archaic)"
"honey"
"migration, flight (Islamic interpretation)"
"brilliant eye, reflective light"
"beautiful voice"
"intelligent, smart"
"godly, sacred, consecrated"
"mighty, honored"
"noble, honorable"
"woman, wife"
"small butterfly, honeybee"
"contentment, satisfaction"
"resembling a celestial being"
"seashell, mother of pearl"
Similar sound: These names share phonetic patterns with Nihan — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Persian origins, giving them the same cultural heritage as Nihan.
Rhythm: Nihan is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.