The word 
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.)
- ultrafilter n. A device that performs ultrafiltration.
- ultrafilter n. (Mathematics, of a set, whose subsets are partially ordered by inclusion) A proper filter which has…
- ultrafilter n. (Mathematics, order theory) A filter (subset of a poset) that is maximal as a set with respect to the…
28 valid words from 3 definitions
ARE AS BY DEVICE FILTER HAS INCLUSION IS MATHEMATICS MAXIMAL OF ORDER ORDERED PARTIALLY PERFORMS PROPER RESPECT SET SUBSET SUBSETS THAT THE THEORY TO ULTRAFILTRATION WHICH WHOSE WITH
1 invalid word from 3 definitions
5 words-in-word (Words found as is inside the word.)
10 words-in-word RTL (Words found written from right to left, inside the word.)
AR ART ET FA FAR FART IF LI RE RET
3 suffixes (New words found by adding one or more letters at the end of the word.)
ULTRAFILTERS ULTRAFILTERED ULTRAFILTERING
One anagram plus one (New word formed with all the letters from the word plus a letter.)
+S ULTRAFILTERS
Scrabble scoring
- 14 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 lipograms (Word found when removing 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.)
- 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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Recommended websites
- Visit WikWik.org - the word
is in the WikWik, see all the details (4 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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