grasp
US /ɡræsp/
UK /ɡræsp/

1.
2.
the ability to understand something
:
•
He has a good grasp of the subject.
•
The concept was beyond her grasp.
1.
seize and hold firmly
:
•
She tried to grasp the slippery fish.
•
He quickly grasped her arm to prevent her from falling.
2.
understand (a difficult concept or problem)
:
•
It took him a while to fully grasp the implications of the new policy.
•
She struggled to grasp the complex mathematical concept.