All 4 Uses

comprehend
in
The Giver
(Edited)

"But you will be faced, now," she explained gently, "with pain of a magnitude that none of us here can comprehend because it is beyond our experience."
p. 63.1 *

comprehend = understand
But it was beyond his comprehension.
p. 70.5

comprehension = understanding
Comprehending all of those things as he sped downward, he was free to enjoy the breathless glee that overwhelmed him: the speed, the clear cold air, the total silence, the feeling of balance and excitement and peace.
p. 82.1
Jonas listened, trying hard to comprehend.
p. 95.2

comprehend = understand

Definitions:

(1) (comprehend)
to understand something -- especially to understand it completely
(2) (meaning too rare to warrant focus)
Much more rarely (and more frequently in the past), comprehend can mean to include as part of something broader. That was the first sense of the word listed in Webster's Dictionary of 1828 with this sample sentence: "The empire of Great Britain comprehends England, Scotland and Ireland, with their dependencies."