Word.ws English Dictionary

Plural of jack

regular plural

The plural of jack is jacks.

Forms of jack

Singularjack /ˈd͡ʒæk/
Pluraljacks /d͡ʒæks/
Countablecountable

Jacks in a sentence

  • The older of the two jacks reached forward and gave Henry's right paw a quick tug.2013, Nick Oldham, Big City Jacks
  • Some botanists believe all jacks are just one species, Arisaema triphyllum, while others claim there are as many as three: A. triphyllum, A. atrorubens, and A. stewardsonii.2003 May 1, “Is that “Jack” in the Pulpit”, in Hilton Pond Center for Piedmont Natural History
  • With three aces and two jacks, he thought it was safe to up the ante.From the entry up the ante
  • I'm not letting him use my computer again; he always jacks it up.From the entry jack up
  • Jacks, queens, and kings are not numerals.From the entry numeral

Meaning of jack

  1. noun A coarse medieval coat of defence, especially one made of leather.
  2. noun A name applied to a hypothetical or typical man.
  3. noun A man, a fellow; a typical man; men in general.

Full definition of jack

Questions about the plural of jack

What is the plural of jack?
The plural of jack is jacks.
Is jack countable?
Jack is a countable noun.

Source and license

Adapted from Wiktionary: jack (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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