The Phrontistery provides an online dictionary of obscure English words, etymologies and topical vocabulary lists.

phrontistery.info
Phrontistery homepage screenshot

About Phrontistery

The Phrontistery is a website that has compiled word lists and language resources since 1996. It provides a dictionary of obscure words, a compendium of lost words, over 30 topical glossaries, and sections on numerals and numeration, lipograms, and short Scrabble words, along with essays on language, linguistics, and culture.

The site owner notes inability to respond to all contact requests and asks users to consult a major dictionary before sending queries.

Key features

  • 17,000-word dictionary of rare and unusual words
  • Alphabetical Compendium of Lost Words
  • Over 30 topical glossaries including phobias and sciences
  • Numerals and numeration section on number systems
  • Lipogram list with etymology and compositions
  • Short Scrabble words from AA to ZUZ
Best for: Writers, students, and word researchers seeking obscure words, topical lists, and language essays.
Good for
  • 17,000-word dictionary for rare-word lookup
  • Over 30 topic-specific word lists
  • Additional coverage of numerals, lipograms, and Scrabble words
Watch out for
  • Site owner states inability to respond to all contact requests
  • Asks users to check a major dictionary before sending queries

Phrontistery at a glance

Type
Website
Pricing
Not confirmed. Check the site
Platforms
Web
Open source
Not stated
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026

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