Arjuni, the wife of Aniruddh

Arjuni, according to Indian mythology, is one of the names of Usha, the wife of Aniruddh.

Arjuni, the son of Arjun

Arjuni (A is pronounced as 'a' in 'father'), according to Mahabharat, was a patronymic of Abhimanyu because of his being son of Arjun.