The word 
is a valid scrabble word
3 short excerpts of WikWik.org (WikWik is an online database of words defined in the English, French, Spanish, Italian, and other Wiktionnaries.)
- rarefaction n. A reduction in the density of a material, especially that of a fluid.
- (In French) raréfaction n.f. Action de raréfier ou de se raréfier, ou état de ce qui…
- (In French) raréfaction n.f. (Physique) Dilatation, extension d’un corps due à l’écartement…
20 valid words from 3 definitions
ACTION CORPS DE DENSITY DILATATION DUE ESPECIALLY ETAT EXTENSION FLUID IN MATERIAL OF OU PHYSIQUE RAREFIER REDUCTION THAT THE UN
4 invalid words from 3 definitions
16 words-in-word (Words found as is inside the word.)
ACT ACTION AR ARE AREFACTION EF FA FACT FACTION IO ION ON RARE RE REF TI
10 words-in-word RTL (Words found written from right to left, inside the word.)
AR CAF CAFE ER ERA FE FER IT NO OI
One lipogram (New word found when removing only one letter.)
2 suffixes (New words found by adding one or more letters at the end of the word.)
2 anagrams plus one (New words formed with all the letters from the word plus a letter.)
+I RAREFICATION
+S RAREFACTIONS
2 anagrams minus one (New words formed with all the letters from the word minus a letter.)
-A REFRACTION
-R AREFACTION
Scrabble scoring
- 16 points.
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 epentheses (Word found when adding only one letter.)
- 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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Recommended websites
- Visit WikWik.org - the word
is in the WikWik, see all the details (3 definitions). - www.BestWordList.com to create personalized word lists.
- www.BestWordClub.com to play duplicate online scrabble.
- Ortograf.ws to look for words.
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