Word.ws English Dictionary

substack

substack noun: a subset of a stack.

Noun (1)

substack (plural substacks)

  1. A subset of a stack.
    • In particular, we give necessary and sufficient conditions for the existence of Poincar\'e bundles over the universal curve of an open substack of the rigidification, generalizing a result of Mestrano-Ramanan..2016, Roberto Fringuelli, “The Picard group of the universal moduli space of vector bundles over ̄ℳ_g”, in arXiv

Proper noun capitalized: Substack

Substack

  1. An online publishing platform for newsletters and journalism.
    • They're on Substack and they also have a YouTube channel.

Noun (2) capitalized: Substack

Substack (plural Substacks)

  1. A publication published via this platform.
    • I've been reading her Substack for a while now.
    • There are several Substacks that are worth watching for insightful coverage of this space.

Forms of substack

pluralsubstacks
pluralSubstacks

Origin of substack

From sub- + stack.

Possibly from sub (“subscription”) + stack.

Words formed from substack

Questions about substack

What does substack mean?
Substack means a subset of a stack.
What part of speech is substack?
Substack can be a noun or a proper noun.
What is the plural of substack?
The plural of substack is substacks.

Words near substack in the dictionary

  1. subsquamulose
  2. subsquare
  3. subsquares
  4. subst
  5. subst.
  6. substack
  7. substacker
  8. Substackerati
  9. substackers
  10. substacks
  11. substage

Source and license

Adapted from Wiktionary: substack (page history and authors); Substack (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “substack.” Word.ws, https://word.ws/substack. Based on Wiktionary, CC BY-SA 4.0.