The word sideral is a valid scrabble word, except in North America

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

  • sideral adj. Alternative form of sidereal.
  • (In French) sidéral adj. (Littéraire) Qui a rapport aux astres.
  • (In French) sidéral adj. (Astronomie) Relatif à un calcul du temps mesuré en relation…

9 valid words from 3 definitions

ALTERNATIVE EN FORM OF RAPPORT RELATION SIDEREAL TEMPS UN

9 invalid words from 3 definitions

ASTRES ASTRONOMIE AUX CALCUL DU LITTERAIRE MESURE QUI RELATIF

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

AL DE ER ERA ID IDE SI SIDE SIDER

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

AR ARE ARED DI DIS ED IS LA LAR LARE RE RED

3 anagrams (New words found by changing the order of the letters.)

DERAILS DIALERS REDIALS

One epenthesis (New word found when adding only one letter.)

SIDEREAL

30 anagrams plus one (New words formed with all the letters from the word plus a letter.)

+A SALARIED
+B BEDRAILS DISABLER RAILBEDS
+C DECRIALS RADICELS RADICLES
+D DIEDRALS
+E REALISED RESAILED SIDEREAL
+G SLAIRGED
+I LAIRISED
+L DALLIERS DIALLERS
+M DISMALER
+N ISLANDER
+O DARIOLES SOLIDARE SOREDIAL
+P LIPREADS PARSLIED PEDRAILS PREDIALS SPIRALED
+T DILATERS LARDIEST REDTAILS
+U RESIDUAL
+Y DIALYSER

36 anagrams minus one (New words formed with all the letters from the word minus a letter.)

-A IDLERS SIDLER SLIDER
-D ARIELS RAILES RESAIL SAILER SERAIL SERIAL
-E DRAILS LAIRDS LIARDS LIDARS
-I ALDERS LADERS SARDEL
-L AIDERS DEAIRS IRADES RAISED REDIAS RESAID SAIRED
-R AISLED DEASIL ELIADS IDEALS LADIES SAILED
-S ARILED DERAIL DIALER LAIRED RAILED REDIAL RELAID

Scrabble scoring

  • 8 points.

Probability in scrabble (Probability to draw 7 letters at the beginning of the game to build the word.)

  • Joker allowed, 1 in 10543 chance (0.01%).
  • Joker not allowed, 1 in 42887 chance.

Other languages

Categories without words

  • No cousins (Word found by changing only one letter.)
  • No lipograms (Word found when removing 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.)

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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