15-Letter Words With OSTR
- 13 words
- All English dictionaries
- Scrabble points
All 15-Letter Words With OSTR 13 words
How often does OSTR appear in fifteen-letter words?
Our combined English word list has 13 fifteen-letter words containing OSTR. They average 20.5 points, the best is BIOSTRATIGRAPHY (26 points) and 38.5% end in S.
- Total words
- 13
- Average Scrabble score
- 20.5
- out of 26 max
- Everyday words
- 0%
- common in ordinary English
- Most common ending
- S
- 38.5% of words
Most common last letters
- s 38.5%
- e 23.1%
- l 15.4%
Top vowel pairs
- io15.4%
- ei7.7%
- eo7.7%
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 OSTR
b 3i 1o 1s 1t 1r 1a 1t 1i 1g 2r 1a 1p 3h 4y 4
B 3 + I 1 + O 1 + S 1 + T 1 + R 1 + A 1 + T 1 + I 1 + G 2 + R 1 + A 1 + P 3 + H 4 + Y 4 = 26 points
- Double word
- 52 pts
- Triple word
- 78 pts
Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).
biostratigraphy
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
Explore related word lists
15-letter words containing…
Words containing OSTR by length
Longer sequences containing OSTR
Each link adds one letter and keeps only combinations that have words.
Change the last letter of OSTR
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 OSTR in the middle of a word
15-Letter Words With OSTR by the numbers
15-Letter Words With OSTR FAQ
How many fifteen-letter words containing OSTR are there?
There are 13 fifteen-letter words containing OSTR 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 OSTR?
BIOSTRATIGRAPHY is worth 26 points in Scrabble before any bonus squares. Other strong options are GEOSTROPHICALLY (26), HETEROSTROPHIES (23), TECHNOSTRUCTURE (22).
Which rare fifteen-letter words containing OSTR score well?
Uncommon but valid choices include BIOSTRATIGRAPHY (26), GEOSTROPHICALLY (26), HETEROSTROPHIES (23), TECHNOSTRUCTURE (22). Few players know them, so they can catch an opponent off guard.