To understand.
To take advantage of something, to seize, to jump at a chance.
To grip; to take hold, particularly with the hand.
Understanding.
That which is accessible; that which is within one's reach or ability.
Grip.
To discern; to manage to see, hear etc.
To manage, get along; to do (well, badly etc.).
To draw up (a document etc.), to designate (a cheque) to a given recipient, payee.
To represent; to make (something) appear to be true.
To embrace and kiss passionately.
To engage in heavy petting or sexual intercourse.