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