Knife Grinder
To see a knife grinder in your dream signifies a loss of freedom.
Kite
To dream that you are flying a kite suggests that even though you have high ambitions and goals, you still remain well-grounded. Persistence will pay off in the end no matter how difficult your current task may be. Alternatively, the dream implies that some choice or gift comes with strings attached. There is a price you will need to pay. Or it may suggest that someone is pulling the strings. You are not really in control of the direction that your life is taking.
Kidnap
To dream that you are being kidnapped denotes feelings of being trapped and restricted. Someone or some situation may be diverting your concentration and your attention away from your goals. In particular, to dream that you are kidnapped by your ex-boyfriend suggests that your ex still has some sort of emotional hold on you.
Keg
To see a keg in your dream symbolises your struggles against adversity. If the keg is full, then it suggests that you need to carry on the same course. If the keg is empty, then it indicates that you need to change your course of action. Alternatively, the dream may represent your energy reserve.