Wikipedia has an excellent entry on religious pluralism, which offers the following gems. From the section on “Literal and Spiritual Truth”:

In contrast, most religious pluralists hold that no religion can claim to teach the only or absolute truth, arguing that religion is not literally the word of God, but rather is mankind’s attempt to describe the word of God. Given man’s finite and fallible nature, no religious text can absolutely describe God and God’s will in absolute precision. On this view no religion is completely true and there is an infinite Reality, or God, that is beyond the ability of any single religion to capture with total accuracy. Instead, all religions make an attempt at capturing this Reality, but this always occurs within a cultural and historical context that affects the viewpoints of the faith’s holders.

And this is from their section on how various religions view inter-religious pluralism:

The Hindu religion is naturally pluralistic. A well-known Rig Vedic hymn stemming from Hinduism claims that “Truth is One, though the sages know it variously.” As such the Hindu religion has no theological difficulties in accepting degrees of truth in other religions. Just as Hindus worshiping Ganesh is seen as valid those worshiping Vishnu (who accepts all prayers), so someone worshiping Jesus or Allah are accepted. Indeed many foreign deities become assimilated into Hinduism, and some Hindus may sometimes offer prayers to Jesus along with their traditional forms of God. For this reason, Hinduism usually has good relations with other religious groups accepting pluralism. In particular, Hinduism and Buddhism coexist peacefully in many parts of the world.

I’ve never really thought to look into the term “religious pluralism” before, but its obvious now that I should. It matches pretty closely what I’ve been trying to say about syncretism as being one of the three main drives in religion.