pike in WordNet English dictionary

1. a broad highway designed for high-speed traffic
   expressway  freeway  motorway  pike  state highway  superhighway  throughway  thruway 
   
2. any of several elongate long-snouted freshwater game and food fishes widely distributed in cooler parts of the northern hemisphere
   pike 
   
3. medieval weapon consisting of a spearhead attached to a long pole or pikestaff; superseded by the bayonet
   pike 
   
4. a sharp point (as on the end of a spear)
   pike 
   
5. highly valued northern freshwater fish with lean flesh
   pike