13 Letter Words That End in SIS

There are 89+ 13 letter words ending in SIS in our English dictionary. Every 13-letter SIS-ending 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 ending in SIS.

Popular 13-Letter Words Ending in SIS

apocatastasis 17
atherogenesis 17
cysticercosis 22
endometriosis 16
heterozygosis 29
immunogenesis 18
lymphocytosis 28
microanalysis 20
mononucleosis 17
morphogenesis 21
mycotoxicosis 29
myelofibrosis 23

All 13-Letter Words Ending in SIS (52 words)

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How Common is SIS as an Ending 13 Letter word?

There are 89 13-letter words ending in SIS in English. The average Scrabble score here is 20.3.

Total Words
89
Avg Scrabble Score
20.3
Top Vowel Pairs
IA
IO

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13 Letter Words ending in SIS 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 13 Letter Words with SIS.

Are you playing Wordle? Try our New York Times Wordle Solver or use the Include and Exclude features on our 13 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 13-Letter SIS-Words in Scrabble

mycotoxicosis 29
heterozygosis 29
lymphocytosis 28
schizogenesis 28
psychokinesis 27
homomorphosis 25

What is the highest scoring word in Scrabble that ends with SIS?

29 Points

The highest scoring word in Scrabble that ends with SIS is mycotoxicosis with a total of 29 points.

M 3
Y 4
C 3
O 1
T 1
O 1
X 8
I 1
C 3
O 1
S 1
I 1
S 1
noun 1. A condition of toxicosis produced by a fungus; poisoning caused by a fungus.

FAQ 13 Letter Words That End in SIS

  • How many 13 letter words ending with SIS are in the English dictionary?

    There are 89 13-letter words in the English dictionary that end with SIS. The average Scrabble score across them is 20.3.

  • Are there any rare 13 letter words ending in SIS worth more in Scrabble?

    Yes. Uncommon 13-letter words like "heterozygosis", "mycotoxicosis", "schizogenesis", "toxoplasmosis" end with SIS and can score big thanks to their unusual letters. "heterozygosis" is worth 29 points in Scrabble before any bonus tiles.

  • What are the most common 13 letter words ending in SIS?

    Everyday 13-letter words ending in SIS include "apocatastasis", "atherogenesis", "cysticercosis", "endometriosis", "heterozygosis".