Comprehend (verb)

1. To understand something fully.
2. To include or encompass something.

Origin:

Late middle english: from latin comprehendere, from com- "together" + prehendere "seize".

Examples:

1. He was unable to comprehend the instructions.
2. She was able to comprehend the instructions.
3. The instructions were easy to comprehend.
4. The instructions were difficult to comprehend.
5. The instructions were meant to be comprehended quickly.