1) Comprehend 2) Have apperception of 3) Perceive 4) To be aware of perceiving 5) To perceive 
• (v. t.) To perceive; to comprehend.
Ap`per·ceive' transitive verb [ French apercevoir , from Latin ad + percipere , perceptum , to perceive. See Perceive .] To perceive; to comprehend. Chaucer. 
[v] - have apperception of
verb perceive in terms of a past experience
to have conscious perception of; comprehend. · to comprehend (a new idea) by assimilation with the sum of one's previous knowledge and experience.