to grab hold of; to capture

to remember; to bear in mind; to learn by heart

to come to a stop; to halt; to keep one's footing; to stay upright; (fig.) to hold one's ground; to gain a firm foothold; (of an assertion etc) to hold up; to be tenable

(verb complement) unable to firmly or securely (grasp, recall etc); repeatedly; continuously; constantly

to preserve; to save