Knowledge is a noun and is described by Webster's Dictionary as:

• The fact or condition of knowing something with familiarity gained through experience or association.
   


• Acquaintance with or understanding of a science, art, or technique.
   


• The fact of condition of being aware of something
   


• The range of one's information or understanding
   


• The circumstance or condition of apprehending truth or fact through reasoning; cognition
   


• The fact or condition of having information or of being learned; a person of unusual knowledge