noun, plural (especially collectively) jack·fish, (especially referring to two or more kinds or species) jack·fish·es.

any of several pikes, especially the northern pike.
the sauger.

Origin of jackfish

First recorded in 1735–45; jack1 + fish
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for jackfish

Historical Examples of jackfish

  • These earn a precarious livelihood by fishing for whitefish and jackfish principally in the summer.

  • We hear the note of the ruby-crowned kinglet (regulus calendula) which some one says sounds like "Chappie, chappie, jackfish."

    The New North

    Agnes Deans Cameron

  • Jackfish proved to be a picturesque hamlet of log huts, clustering on a rocky point of land that jutted into the lake.

    Gulf and Glacier

    Willis Boyd Allen

British Dictionary definitions for jackfish


noun plural -fish or -fishes

the pike fish, esp when small
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012