From Longman Dictionary of Contemporary Englishpikepike /paɪk/ noun [countable] 1 
HBF (plural pike) a large fish that eats other fish and lives in rivers and lakes2 PMWa long-handled weapon with a sharp blade, used in the past3 → come down the pike4 TTR American English spoken a turnpike
HBF (plural pike) a large fish that eats other fish and lives in rivers and lakes2 PMWa long-handled weapon with a sharp blade, used in the past3 → come down the pike4 TTR American English spoken a turnpikeExamples from the Corpus
pike• The personal best pike measured a massive 45 inches with a girth of 24 inches and was returned alive.• Imagine for a moment what easy pickings a huge shoal of small bream are to a pack of marauding pike.• A 21-pound pike was caught there recently.• Our image as a bunch of bumpkins who roll over for anything that comes down the pike?• Authorities said they were sending biologists to Delliker Pond to determine whether pike were present there.Origin pike 1. (1300-1400) pike “sharp pointed object” ((11-20 centuries)), from Old English pic2. (1500-1600) French pique3. (1800-1900) turnpike 