15-Letter Words With EFF
- 11 words
- All English dictionaries
- Scrabble points
Popular 15-Letter Words With EFF
The most familiar words on this list, with their Scrabble scores.
All 15-Letter Words With EFF 11 words
How often does EFF appear in fifteen-letter words?
Our combined English word list has 11 fifteen-letter words containing EFF. They average 25.8 points, the best is SUPEREFFICIENCY (30 points) and 72.7% end in S.
- Total words
- 11
- Average Scrabble score
- 25.8
- out of 30 max
- Everyday words
- 0%
- common in ordinary English
- Most common ending
- S
- 72.7% of words
Most common last letters
- s 72.7%
- y 27.3%
Top vowel pairs
- ie18.2%
- io18.2%
- ou18.2%
Share of words where these two vowels sit side by side.
Rare words worth knowing
Valid in this dictionary but rarely seen in everyday English.
Highest-scoring fifteen-letter word containing EFF
s 1u 1p 3e 1r 1e 1f 4f 4i 1c 3i 1e 1n 1c 3y 4
S 1 + U 1 + P 3 + E 1 + R 1 + E 1 + F 4 + F 4 + I 1 + C 3 + I 1 + E 1 + N 1 + C 3 + Y 4 = 30 points
- Double word
- 60 pts
- Triple word
- 90 pts
Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).
superefficiency
No dictionary definition on file. This is a valid game word that standard dictionaries rarely cover.
- Scrabble US
- Scrabble UK
- Words With Friends
Runners-up
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15-letter words containing…
Words containing EFF by length
Longer sequences containing EFF
Each link adds one letter and keeps only combinations that have words.
Change the last letter of EFF
Trending word lists
Five-letter lists built from the letters of yesterday's Wordle answer. The set changes every day.
How to use this word list
Using EFF in the middle of a word
15-Letter Words With EFF by the numbers
15-Letter Words With EFF FAQ
How many fifteen-letter words containing EFF are there?
There are 11 fifteen-letter words containing EFF in our combined English word list. Other dictionaries give different totals, so switch dictionary at the top of the list to compare.
What is the highest-scoring fifteen-letter word containing EFF?
SUPEREFFICIENCY is worth 30 points in Scrabble before any bonus squares. Other strong options are EFFERVESCENCIES (28), INEFFACEABILITY (28), INEFFICACIOUSLY (28).
Which rare fifteen-letter words containing EFF score well?
Uncommon but valid choices include SUPEREFFICIENCY (30), EFFERVESCENCIES (28), INEFFACEABILITY (28), INEFFICACIOUSLY (28). Few players know them, so they can catch an opponent off guard.