Some words that mean to hold on tightly are:
clasp
clutch
grasp
grip
seize
You grip something tightly.
Grip
GRIP
grip hold
One possibility is grab.
To hold something hard in a squzze
You grip something tightly.
It means u hold something tightly or you don't hold it tightly
Grip
rope
GRIP
grip hold
Some words that mean "seize" or "hold firmly" are:gripclutchgraspclaspclench
grip or cling
to hold on to something tightly to be stressted out
Grip
grab