This document defines the word "knowledge" and discusses its meaning. It provides three definitions of knowledge: 1) facts, information, and skills acquired through experience or education, which can include a person's understanding of a subject or what is known in a particular field, 2) awareness or familiarity gained through experience of a fact or situation, and 3) in philosophy, true, justified belief or certain understanding as opposed to opinion. The document also mentions images related to the concept of knowledge.