The term 'Spear or Fish' can be solved by the four-letter word 'PIKE'. A PIKE is a type of fish, but it can also refer to a long-handled weapon with a pointed head. The PIKE was used as a weapon in Europe during the Middle Ages and Renaissance, and it is still used today in some martial arts. In fishing, a PIKE is a large, predatory freshwater fish found in many parts of the world. It is an aggressive predator that feeds on smaller fish, frogs, and other aquatic animals.