12-Letter Words Starting With OS
- 32 words
- All English dictionaries
- Scrabble points
Popular 12-Letter Words Starting With OS
The most familiar words on this list, with their Scrabble scores.
All 12-Letter Words Starting With OS 32 words
How common is OS at the start of twelve-letter words?
Our combined English word list has 32 twelve-letter words that start with OS. They average 16 points, the best is OSTRACIZABLE (25 points) and 50% end in S.
- Total words
- 32
- Average Scrabble score
- 16
- out of 25 max
- Everyday words
- 9%
- common in ordinary English
- Most common ending
- S
- 50% of words
Most common last letters
- s 50%
- c 18.8%
- e 9.4%
Top vowel pairs
- eo56.3%
- ie12.5%
- io12.5%
Share of words where these two vowels sit side by side.
Rare words worth knowing
Valid in this dictionary but rarely seen in everyday English.
Highest-scoring twelve-letter word that starts with OS
o 1s 1t 1r 1a 1c 3i 1z 10a 1b 3l 1e 1
O 1 + S 1 + T 1 + R 1 + A 1 + C 3 + I 1 + Z 10 + A 1 + B 3 + L 1 + E 1 = 25 points
- Double word
- 50 pts
- Triple word
- 75 pts
Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).
ostracizable
No dictionary definition on file. This is a valid game word that standard dictionaries rarely cover.
- Scrabble US
- Scrabble UK
- Words With Friends
Runners-up
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Trending word lists
Five-letter lists built from the letters of yesterday's Wordle answer. The set changes every day.
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How to use this word list
Playing words that start with OS
12-Letter Words Starting With OS by the numbers
12-Letter Words Starting With OS FAQ
How many twelve-letter words that start with OS are there?
There are 32 twelve-letter words that start with OS in our combined English word list. Other dictionaries give different totals, so switch dictionary at the top of the list to compare.
What is the highest-scoring twelve-letter word that starts with OS?
OSTRACIZABLE is worth 25 points in Scrabble before any bonus squares. Other strong options are OSTEICHTHYAN (23), OSCILLOGRAPH (20), OSCILLOSCOPE (18).
What are some common twelve-letter words that start with OS?
Everyday examples include OSCILLOSCOPE, OSTENTATIOUS, OSCILLATIONS, OSSIFICATION, OSTEOPOROSIS. Sort the list by "Most common" to see the familiar words first.
Which rare twelve-letter words that start with OS score well?
Uncommon but valid choices include OSTRACIZABLE (25), OSTEICHTHYAN (23), OSTEOMALACIC (18), OSTREOPHAGES (18). Few players know them, so they can catch an opponent off guard.