What is Veda? 

To "know" or "realize" OM is to know and identify with the infinite processes of creation itself at their most fundamental level. This knowing is called Veda.

Veda is total knowledge of AUM, the knowledge of all possibilities and all probabilities.

Veda is the state of completely knowing the actions of the 3 Gunas, thereby understanding the action, or Karma, of anything in physical form.

वेदो अखिलो धर्ममूलम्

vedo akhilo dharma mulam

"Veda is the root of Dharma"

-Manu Smriti 2.6