13 Letter Words That Start With OS

There are 22+ 13 letter words beginning with OS in our English dictionary. Every 13-letter OS 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 OS.

Popular 13-Letter Words Starting With OS

oscillational 15
oscillographs 21
oscillography 24
oscilloscopes 19
oscilloscopic 21
ossifications 18
osteichthyans 24
ostensibility 18
osteofibroses 18
osteofibrosis 18
osteographies 19
osteomalacias 17

All 13-Letter Words Starting With OS (14 words)

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How Common is OS as a Start 13 Letter word?

There are 22 13-letter words starting with OS in English. The average Scrabble score here is 18.2, with -S endings dominating (73% of them).

Total Words
22
Avg Scrabble Score
18.2
Most Common Ending (73%)
S
Top Vowel Pairs
EO
IE

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13 Letter Words beginning with OS 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 OS.

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 OS-Words in Scrabble

oscillography 24
osteichthyans 24
oscilloscopic 21
oscillographs 21
osteographies 19
ostreophagies 19

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

24 Points

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

O 1
S 1
C 3
I 1
L 1
L 1
O 1
G 2
R 1
A 1
P 3
H 4
Y 4

FAQ 13 Letter Words That Start With OS

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

    There are 22 13-letter words in the English dictionary that start with OS. The average Scrabble score across them is 18.2.

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

    Yes. Uncommon 13-letter words like "oscilloscopic", "oscillography", "oscillational", "ostreiculture" start with OS and can score big thanks to their unusual letters. "oscillography" is worth 24 points in Scrabble before any bonus tiles.

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

    Everyday 13-letter words starting with OS include "oscillational", "oscillographs", "oscillography", "oscilloscopes", "oscilloscopic".

Next to Words Start With OS

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