- A Zoroastrian fire temple is the building which principally houses a sacred consecrated fire, which could be either of the three grades of Dadgah, Adaran or Atash Behram.
- The fire temple housing only the first grade of fire (dadgah) as the focal point of worship is referred to as the Agyari. The fire temple housing the second grade of fire (adaran) as the central focal point of worship is referred to as the Agyari or an Adaran. The fire temple housing the highest grade of fire as the central focal point of worship is referred to as the Atash Behram.
- Another word used for fire temple is Dar-e-meher, which literally means “The house of Meher Yazad.” In the olden times, a Dar-e-meher was a house of worship where there was no permanently burning fire and where only rituals were performed. Nowadays, since almost all rituals are performed in a fire-temple, an Agyari or an Adaran is also referred to as a Dar-e-meher.
- In the Western diaspora, Zoroastrian places of worship without permanently burning fires, are also referred to as a Dar-e-meher or a Darbe-meher, the latter being a Persianised or Anglicized way of writing Dar-e-meher.
- In Iran, fire temples are generally referred to as Atash kadeh, which simply means “house of fire.” In colloquial usage a fire temple in Iran is also called a Darbe-meher.