grasp

[1]	grip , grab , seize , clasp , clutch , snatch , hold , take/lay/catch hold of , (Colloq) nab
[2]	understand , comprehend , appreciate , catch (on) , get , get the drift/point of , follow , see , realize , apprehend , learn , (Colloq) make head(s)/tail(s) of , (Slang) dig
[3]	hold on
[4]	grok , get the picture , comprehend , savvy , dig , compass , apprehend

[1]	appreciation , hold
[2]	compass , range , reach
[3]	grip , hold , grip , clutches , clasp , embrace , lock
[4]	possession , clasp , clench , control , power , clutch , clutches , mastery , sovereignty , grip , hold , suzerainty , hold
[5]	understanding , comprehension , apprehension , awareness , perception , sense