9 Letter Words That Start With IS

There are 101+ nine letter words beginning with IS in our English dictionary. Every nine-letter IS word below is valid in the Scrabble (TWL and SOWPODS), Wordle, and Words With Friends dictionaries, sortable and ready for your next puzzle. You can also browse all words starting with IS.

Popular 9-Letter Words Starting With IS

isolation 9

isarithms 14

isenergic 12

islanders 10

isochimes 16

isochores 14

isoclines 11

isocrymal 16

isocyclic 18

isodontal 10

isogamous 12

isolating 10

All 9-Letter Words Starting With IS (70 words)

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How Common is IS as a Start 9 Letter word?

There are 101 9-letter words starting with IS in English. The average Scrabble score here is 13.2, with -S endings dominating (47% of them).

Total Words

101

Avg Scrabble Score

Most Common Ending (47%)

Top Vowel Pairs

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9 Letter Words Starting With

Words Starting With IS

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9 Letter Words beginning with IS are often very useful for word games like Scrabble and Words with Friends. This list will help you to find the top scoring words to beat the opponent. Word Finder by WordTips gives you a list of words ordered by their word game points of your choice. You might also be interested in 9 Letter Words with IS.

Are you playing Wordle? Try our New York Times Wordle Solver or use the Include and Exclude features on our 9 Letter Words page when playing Dordle, WordGuessr or any other Wordle-like games. They help you guess the answer faster by allowing you to input the good letters you already know and exclude the words containing your bad letter combinations.

Highest-Scoring 9-Letter IS-Words in Scrabble

isoenzyme 23

isomerize 20

isoniazid 19

isocyclic 18

isopycnic 18

ischaemic 18

What is the highest scoring word in
Scrabble that starts with IS?

23 Points

The highest scoring word in Scrabble that starts with IS is isoenzyme with a total of 23 points.

I 1

S 1

O 1

E 1

N 1

Z 10

Y 4

M 3

E 1

noun 1. each of two or more enzymes with identical function but different structure

FAQ 9 Letter Words That Start With IS

How many 9 letter words starting with IS are in the English dictionary?

There are 101 9-letter words in the English dictionary that start with IS. The average Scrabble score across them is 13.2.
Are there any rare 9 letter words starting with IS worth more in Scrabble?

Yes. Uncommon 9-letter words like "isoniazid", "isomerize", "isoenzyme", "isotropic" start with IS and can score big thanks to their unusual letters. "isoenzyme" is worth 23 points in Scrabble before any bonus tiles.
What are the most common 9 letter words starting with IS?

Everyday 9-letter words starting with IS include "isolation", "isarithms", "isenergic", "islanders", "isochimes".

Next to Words Start With IS

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