knowledge

Ignorance is bliss. Wake up and smell the coffee! What you don't know won't hurt you. a fund of a mine of information a priori a walking encyclopedia a working knowledge of something abreast absent acquaintance acquainted alive appreciation as every schoolboy knows

الفهم والاستيعاب الذاكرة والتذكر الإدراك والإحساس والاكتشاف