What is full form of religion?

There is no widely accepted full form for the word "religion." It's a word with a long history and complex meanings, and trying to find a single, definitive full form would be inaccurate and misleading.

However, you might be interested in exploring the etymology of the word "religion." It comes from the Latin word "religio," which is thought to be related to the verb "religare," meaning "to bind" or "to tie." This suggests a core idea of religion as a system of beliefs and practices that bind people together, either to a deity or to a set of moral principles.

Ultimately, "religion" is a term that encompasses a vast range of beliefs, practices, and experiences, and it's important to approach it with an open mind and a willingness to learn about its different facets.