1. a large freshwater fish of the pike family, especially the northern pike
Usage: North American
2. any of various marine fish, especially certain jacks or carangids
Usage: regional

Examples

• The angler caught a large jackfish near the weedy shoreline.
• Jackfish are popular game fish in northern lakes.
• The jackfish struck the lure with surprising force.
• We saw several jackfish swimming in the clear water.
• The guide recommended using spoons to catch jackfish.
• Jackfish can grow to impressive sizes in these waters.