Definitions

1. adverb

in a manner that involves reasoning from general or universal principles to specific instances, especially in philosophy.

“The philosopher argued that knowledge must be acquired apriori in order to be truly certain.”

2. adjective

known or determined prior to experience or observation.

“Apriori knowledge is often considered more reliable than knowledge gained through experience.”

3. noun

a proposition or principle known or assumed prior to experience or observation.

“The philosopher’s apriori belief in the existence of God was central to his philosophy.”