10 Letter Words That Start With IS

There are 81+ ten letter words beginning with IS in our English dictionary. Every ten-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 10-Letter Words Starting With IS

isoantigen 11
isobutanes 12
isocheimal 17
isoclinals 12
isocyanide 16
isodynamic 18
isoenzymes 24
isoenzymic 26
isokontans 14
isomerisms 14
isomerized 22
isomorphic 19

All 10-Letter Words Starting With IS (50 words)

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How Common is IS as a Start 10 Letter word?

There are 81 10-letter words starting with IS in English. The average Scrabble score here is 14.6, with -S endings dominating (52% of them).

Total Words
81
Avg Scrabble Score
14.6
Most Common Ending (52%)
S
Top Vowel Pairs
IE
IA

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10 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 10 Letter Words with IS.

Are you playing Wordle? Try our New York Times Wordle Solver or use the Include and Exclude features on our 10 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 10-Letter IS-Words in Scrabble

isoenzymic 26
isoenzymes 24
isomerized 22
isomerizes 21
isopachyte 20
isoniazids 20

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

26 Points

The highest scoring word in Scrabble that starts with IS is isoenzymic with a total of 26 points.

I 1
S 1
O 1
E 1
N 1
Z 10
Y 4
M 3
I 1
C 3

FAQ 10 Letter Words That Start With IS

  • How many 10 letter words starting with IS are in the English dictionary?

    There are 81 10-letter words in the English dictionary that start with IS. The average Scrabble score across them is 14.6.

  • Are there any rare 10 letter words starting with IS worth more in Scrabble?

    Yes. Uncommon 10-letter words like "isoenzymic", "isoniazide", "isomerized", "isoniazids" start with IS and can score big thanks to their unusual letters. "isoenzymic" is worth 26 points in Scrabble before any bonus tiles.

  • What are the most common 10 letter words starting with IS?

    Everyday 10-letter words starting with IS include "isoantigen", "isobutanes", "isocheimal", "isoclinals", "isocyanide".

Next to Words Start With IS

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