15-Letter Words Starting With ISO
- 3 words
- All English dictionaries
- Scrabble points
All 15-Letter Words Starting With ISO 3 words
How common is ISO at the start of fifteen-letter words?
Our combined English word list has 3 fifteen-letter words that start with ISO. They average 22.7 points and the best is ISOIMMUNIZATION (28 points).
- Total words
- 3
- Average Scrabble score
- 22.7
- out of 28 max
- Everyday words
- 0%
- common in ordinary English
- Most common ending
- N
- 66.7% of words
Most common last letters
- n 66.7%
- l 33.3%
Top vowel pairs
- io66.7%
- oi66.7%
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 that starts with ISO
i 1s 1o 1i 1m 3m 3u 1n 1i 1z 10a 1t 1i 1o 1n 1
I 1 + S 1 + O 1 + I 1 + M 3 + M 3 + U 1 + N 1 + I 1 + Z 10 + A 1 + T 1 + I 1 + O 1 + N 1 = 28 points
- Double word
- 56 pts
- Triple word
- 84 pts
Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).
isoimmunization
No dictionary definition on file. This is a valid game word that standard dictionaries rarely cover.
- Scrabble US
- Scrabble UK
- Words With Friends
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15-Letter Words Starting With ISO by the numbers
15-Letter Words Starting With ISO FAQ
How many fifteen-letter words that start with ISO are there?
There are 3 fifteen-letter words that start with ISO 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 that starts with ISO?
ISOIMMUNIZATION is worth 28 points in Scrabble before any bonus squares. Other strong options are ISOPERIMETRICAL (21), ISOIMMUNISATION (19).
Which rare fifteen-letter words that start with ISO score well?
Uncommon but valid choices include ISOIMMUNIZATION (28), ISOIMMUNISATION (19). Few players know them, so they can catch an opponent off guard.