grasp

nouns

understanding of the nature or meaning or quality or magnitude of something
"he has a good grasp of accounting practices"
appreciation, grasp, hold
the limit of capability
"within the compass of education"
compass, grasp, range, reach
an intellectual hold or understanding
"a good grip on French history"; "they kept a firm grip on the two top priorities"; "he was in the grip of a powerful emotion"; "a terrible power had her in its grasp"
grasp, grip
the act of grasping
"he released his clasp on my arm"; "he has a strong grip for an old man"; "she kept a firm hold on the railing"
clasp, clench, clutch, clutches, grasp, grip, hold

verbs

hold firmly
grasp, hold on
is derived from
grasping
get the meaning of something
"Do you comprehend the meaning of this letter?"
apprehend, compass, comprehend, dig, get the picture, grasp, grok, savvy
is derived from
grasping