Navy sits next to 4 phonetic neighbors — Davey, Avery, and Gravy are the closest matches by sound. Most share Navy's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"fleet of ships"
"wolf, wild hunter"
"the fifth"
"middle of the plain (city name)"
"cloud"
"savior, one who saves"
"bright-headed warrior"
"modern American invented name"
"pledge, oath"
"pledged, devoted"
"narrow strait"
"forest guardian, one who patrols"
"dweller at the untilled ground"
"people's champion, victorious one"
"son of the grey-haired one"
"God is salvation"
"firm, unwavering"
"from the hazel tree settlement"
"modern creative name construction"
"from the pool or marsh"
"brave ruler, strong king"
Similar sound: These names share phonetic patterns with Navy — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Navy.
Rhythm: Navy is a 2-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.