15-Letter Words With OS
- 331 words
- All English dictionaries
- Scrabble points
Popular 15-Letter Words With OS
The most familiar words on this list, with their Scrabble scores.
All 15-Letter Words With OS 331 words
How often does OS appear in fifteen-letter words?
Our combined English word list has 331 fifteen-letter words containing OS. They average 23.5 points, the best is PHOTOSYNTHESIZE (35 points) and 51.7% end in S.
- Total words
- 331
- Average Scrabble score
- 23.5
- out of 35 max
- Everyday words
- 2%
- common in ordinary English
- Most common ending
- S
- 51.7% of words
Most common last letters
- s 51.7%
- y 11.5%
- e 8.2%
Top vowel pairs
- io20.5%
- ie8.8%
- ia6.3%
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 fifteen-letter word containing OS
p 3h 4o 1t 1o 1s 1y 4n 1t 1h 4e 1s 1i 1z 10e 1
P 3 + H 4 + O 1 + T 1 + O 1 + S 1 + Y 4 + N 1 + T 1 + H 4 + E 1 + S 1 + I 1 + Z 10 + E 1 = 35 points
- Double word
- 70 pts
- Triple word
- 105 pts
Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).
photosynthesize
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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Words containing OS by length
Longer sequences containing OS
Each link adds one letter and keeps only combinations that have words.
Change the last letter of OS
Trending word lists
Five-letter lists built from the letters of yesterday's Wordle answer. The set changes every day.
How to use this word list
Using OS in the middle of a word
15-Letter Words With OS by the numbers
15-Letter Words With OS FAQ
How many fifteen-letter words containing OS are there?
There are 331 fifteen-letter words containing 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 fifteen-letter word containing OS?
PHOTOSYNTHESIZE is worth 35 points in Scrabble before any bonus squares. Other strong options are PSYCHOSEXUALITY (35), PHOSPHATIZATION (34), DEXTROPHOSPHATE (33).
What are some common fifteen-letter words containing OS?
Everyday examples include PHOSPHORESCENCE, RETROSPECTIVELY, HETEROSEXUALITY, PHILOSOPHICALLY, ATHEROSCLEROSIS, PREDISPOSITIONS, MICROSCOPICALLY, IMPOSSIBILITIES. Sort the list by "Most common" to see the familiar words first.
Which rare fifteen-letter words containing OS score well?
Uncommon but valid choices include PHOTOSYNTHESIZE (35), PSYCHOSEXUALITY (35), PHOSPHATIZATION (34), DEXTROPHOSPHATE (33). Few players know them, so they can catch an opponent off guard.