Words That Start With ISO

Q: How many words that start with ISO are there?

There are 389 words that start with ISO in our combined English word list. The most common length is 9 letters, with 78 words. Other dictionaries give different totals, so switch dictionary at the top of the list to compare.

Q: What is the highest-scoring word that starts with ISO?

ISOCARBOXAZIDS is worth 35 points in Scrabble before any bonus squares. Other strong options are ISOCARBOXAZID (34), ISOALLOXAZINES (30), ISOALLOXAZINE (29).

Q: What are some common words that start with ISO?

Everyday examples include ISOLATE , ISOLATION , ISOLATING , ISOLATES , ISOLATED , ISOMORPHIC , ISOLATIONISM , ISOLATIONIST . Sort the list by "Most common" to see the familiar words first.

Q: What is the longest word that starts with ISO?

ISOELECTRONICALLY has 17 letters. If you prefer a word people actually use, ISOLATING (9 letters) is the longest common one.

389 words
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Popular Words That Start With ISO

The most familiar words on this list, with their Scrabble scores.

All Words That Start With ISO 389 words · page 2 of 2

How common is ISO at the start of words?

Our combined English word list has 389 words that start with ISO. Most are 9 letters long, they average 14.4 points, the best is ISOCARBOXAZIDS (35 points) and 41.6% end in S.

Total words: 389
Most common length: 9 letters; 78 words
Average Scrabble score: 14.4; out of 35 max
Longest word: ISOELECTRONICALLY; 17 letters
Most common ending: S; 41.6% of words

Most common last letters

s 41.6%
c 12.9%
e 12.9%

Top vowel pairs

ie4.6%
ou4.4%
oa3.3%

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 word that starts with ISO

i ₁s ₁o ₁c ₃a ₁r ₁b ₃o ₁x ₈a ₁z ₁₀i ₁d ₂s ₁

I 1 + S 1 + O 1 + C 3 + A 1 + R 1 + B 3 + O 1 + X 8 + A 1 + Z 10 + I 1 + D 2 + S 1 = 35 points

Double word: 70 pts
Triple word: 105 pts

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

isocarboxazids

Form of isocarboxazid

nouna monoamine oxidase inhibitor (trade name Marplan) that is used to treat clinical depression

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Words That Start With ISO FAQ

How many words that start with ISO are there?

There are 389 words that start with ISO in our combined English word list. The most common length is 9 letters, with 78 words. Other dictionaries give different totals, so switch dictionary at the top of the list to compare.

What is the highest-scoring word that starts with ISO?

ISOCARBOXAZIDS is worth 35 points in Scrabble before any bonus squares. Other strong options are ISOCARBOXAZID (34), ISOALLOXAZINES (30), ISOALLOXAZINE (29).

What are some common words that start with ISO?

Everyday examples include ISOLATE, ISOLATION, ISOLATING, ISOLATES, ISOLATED, ISOMORPHIC, ISOLATIONISM, ISOLATIONIST. Sort the list by "Most common" to see the familiar words first.

What is the longest word that starts with ISO?

ISOELECTRONICALLY has 17 letters. If you prefer a word people actually use, ISOLATING (9 letters) is the longest common one.