13 Letter Words That Start With SI

There are 45+ 13 letter words beginning with SI in our English dictionary. Every 13-letter SI 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 SI.

Popular 13-Letter Words Starting With SI

significantly 22
sialographies 19
sidesteppings 19
sightlessness 17
sigmoidoscope 21
sigmoidoscopy 24
signalisation 14
significators 19
significatory 22
silkscreening 20
silverberries 18
silvicultural 18

All 13-Letter Words Starting With SI (33 words)

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How Common is SI as a Start 13 Letter word?

There are 45 13-letter words starting with SI in English. The average Scrabble score here is 18.6, with -S endings dominating (53% of them).

Total Words
45
Avg Scrabble Score
18.6
Most Common Ending (53%)
S
Top Vowel Pairs
IE
IO

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13 Letter Words beginning with SI 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 SI.

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 SI-Words in Scrabble

sigmoidoscopy 24
singularizing 24
sizablenesses 24
sigmoidectomy 24
sightworthier 23
siphonophores 23

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

24 Points

The highest scoring word in Scrabble that starts with SI is sigmoidoscopy with a total of 24 points.

S 1
I 1
G 2
M 3
O 1
I 1
D 2
O 1
S 1
C 3
O 1
P 3
Y 4
noun 1. examination of the sigmoid colon by means of a flexible tube inserted through the anus

FAQ 13 Letter Words That Start With SI

  • How many 13 letter words starting with SI are in the English dictionary?

    There are 45 13-letter words in the English dictionary that start with SI. The average Scrabble score across them is 18.6.

  • Are there any rare 13 letter words starting with SI worth more in Scrabble?

    Yes. Uncommon 13-letter words like "signalization", "singularizing", "sigmoidoscopy", "silvicultural" start with SI and can score big thanks to their unusual letters. "singularizing" is worth 24 points in Scrabble before any bonus tiles.

  • What are the most common 13 letter words starting with SI?

    Everyday 13-letter words starting with SI include "significantly", "sialographies", "sidesteppings", "sightlessness", "sigmoidoscope".

Next to Words Start With SI

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