Definitions of pip:

• noun:   a small hard seed found in some fruits
• noun:   a minor nonspecific ailment
• noun:   a disease of poultry
• noun:   a radar echo displayed so as to show the position of a reflecting surface
• noun:   a mark on a playing card (shape depending on the suit)
• verb:   kill by firing a missile
• verb:   defeat thoroughly
• verb:   hit with a missile from a weapon