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11-Letter Words Starting With ISO

  • 38 words
  • All English dictionaries
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All 11-Letter Words Starting With ISO 38 words

How common is ISO at the start of eleven-letter words?

Our combined English word list has 38 eleven-letter words that start with ISO. They average 16.7 points, the best is ISOCHRONIZE (25 points) and 47.4% end in S.

Total words
38
Average Scrabble score
16.7
out of 25 max
Everyday words
0%
common in ordinary English
Most common ending
S
47.4% of words

Most common last letters

  • s 47.4%
  • e 13.2%
  • c 7.9%

Top vowel pairs

  • ei7.9%
  • ia7.9%
  • oa7.9%

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 eleven-letter word that starts with ISO

i 1s 1o 1c 3h 4r 1o 1n 1i 1z 10e 1

I 1 + S 1 + O 1 + C 3 + H 4 + R 1 + O 1 + N 1 + I 1 + Z 10 + E 1 = 25 points

Double word
50 pts
Triple word
75 pts

Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).

isochronize

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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11-Letter Words Starting With ISO by the numbers

11-Letter Words Starting With ISO FAQ

How many eleven-letter words that start with ISO are there?

There are 38 eleven-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 eleven-letter word that starts with ISO?

ISOCHRONIZE is worth 25 points in Scrabble before any bonus squares. Other strong options are ISORHYTHMIC (24), ISOMERIZING (23), ISONIAZIDES (21).

Which rare eleven-letter words that start with ISO score well?

Uncommon but valid choices include ISOCHRONIZE (25), ISORHYTHMIC (24), ISOMERIZING (23), ISONIAZIDES (21). Few players know them, so they can catch an opponent off guard.