Apprehend

1. To think, believe, or be of opinion; to understand; to suppose.
2. To take or seize; to take hold of.
3. To anticipate; esp., to anticipate with anxiety, dread, or fear; to fear.
4. To take hold of with the understanding, that is, to conceive in the mind; to become cognizant of; to understand; to recognize; to consider.
5. Hence: To take or seize (a person) by legal process; to arrest; as, to apprehend a criminal.
6. To know or learn with certainty.
7. To be apprehensive; to fear.