The word penrosestaircase is not a valid scrabble word

1 short excerpt of WikWik.org (WikWik is an online database of words defined in the English, French, Spanish, Italian, and other Wiktionnaries.)

  • Penrose␣staircase n. An impossible loop of endlessly ascending and descending stairs, or an optical illusion appearing to be one.

16 valid words from the definition

AN AND APPEARING ASCENDING BE DESCENDING ENDLESSLY ILLUSION IMPOSSIBLE LOOP OF ONE OPTICAL OR STAIRS TO

19 words-in-word (Words found as is inside the word.)

AI AIR AS CASE EN ES EST OS OSE OSES PE PEN ROSE ROSES ST STAIR STAIRCASE TA TAI

11 words-in-word RTL (Words found written from right to left, inside the word.)

AT ATS CRIA ES NE NEP OR RIA SAC SO SORN

Scrabble scoring

  • Zero, invalid.
  • 20 points, without game rules.

Other languages

Categories without words

  • No anagrams (Word found by changing the order of the letters.)
  • No cousins (Word found by changing only one letter.)
  • No lipograms (Word found when removing only one letter.)
  • No epentheses (Word found when adding only one letter.)
  • No suffixes (Word found by adding one or more letters at the end of the word.)
  • Not found in the middle (Word found by adding letters in front and at the end of the word.)
  • No prefixes (Word found by adding one or more letters in front of the word.)
  • No anagrams can be formed with an extra letter (New word formed with all the letters of the word and an extra letter.)
  • No anagrams can be formed by removing a letter (New word formed with all the letters of the word minus a letter.)

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.

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