v (context|avian biology) To make the initial hole during the process of hatching from an egg
n One of a series of very short, electronically produced tones, used, for example, to count down the final few seconds before a given time or to indicate that a caller using a payphone needs to make further payment if he is to continue his call.
n (context|finance|currency trading) The smallest price increment between two currencies in foreign exchange (forex) trading.