a predatory freshwater fish with a spiny dorsal fin, found in North America and Eurasia, a pike or muskellunge

Formal and Informal Expressions of jackfish

In different contexts, you can replace 'jackfish' with suitable alternatives. In a more formal setting, 'pike, muskellunge' is apt.

jackfish: Explore its Definition & Usage

jackfish Definition

1a predatory freshwater fish with a spiny dorsal fin, found in North America and Eurasia
2a pike or muskellunge

Using jackfish: Examples

Take a moment to familiarize yourself with how "jackfish" can be used in various situations through the following examples!

Example
He caught a jackfish while fishing in the lake.
Example
The jackfish is known for its sharp teeth and aggressive behavior.

jackfish Synonyms and Antonyms

Synonyms for jackfish

pike
muskellunge

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Summary: jackfish in Brief

A 'jackfish' [ˈdʒækfɪʃ] is a predatory freshwater fish with a spiny dorsal fin, commonly found in North America and Eurasia. It is also known as a 'pike' or 'muskellunge.'