From Hindupedia, the Hindu Encyclopedia
By M. A. Alwar
Sometimes transliterated as: Indrani, IndrANI, Indraani
Indrāṇī is a feminine form.
It is derived from 'indrasya aiśvaryaśālinaḥ surarājasya vā patnī' which means 'The wife of Indra, an affluent man or the king of Gods'.
- The goddess Durgā
- The wife of Indra
- The personified energy of Indra
- The Indrasurisa tree
- Sense organ of women
- The blue Sinduvāra tree (Vitex negundo)
- Large cardamoms
- Small cardamoms
- The name of one of the eight mātṛkās
As the Wife of Indra
As per ŚaktiIt means personified energy of Indra.
“Here I invite the Indrāṇī and the Varuṇānī”.
As per Dayānanda Sarasvatī
As Goddess DurgāAs per Durgā, the word is used in Devīpurāṇam, 45th chapter.
The goddess is called Indrāṇī, an epithet derived from the root  idi, which denotes supreme sovereignty), because her powers are supreme, and all the Gods and Demons are under her control.
- Shabdakalpadrumah by Raja Radhakantdev, Varadaprasada Vasu, Haricarana Vasu