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15-Letter Words With OSTI

  • 7 words
  • All English dictionaries
  • Scrabble points
Dictionary

Popular 15-Letter Words With OSTI

The most familiar words on this list, with their Scrabble scores.

All 15-Letter Words With OSTI 7 words

How often does OSTI appear in fifteen-letter words?

Our combined English word list has 7 fifteen-letter words containing OSTI. They average 21.1 points and the best is PHARMACOGNOSTIC (27 points).

Total words
7
Average Scrabble score
21.1
out of 27 max
Everyday words
0%
common in ordinary English
Most common ending
N
42.9% of words

Most common last letters

  • n 42.9%
  • c 14.3%
  • e 14.3%

Top vowel pairs

  • io42.9%
  • ia14.3%

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 OSTI

p 3h 4a 1r 1m 3a 1c 3o 1g 2n 1o 1s 1t 1i 1c 3

P 3 + H 4 + A 1 + R 1 + M 3 + A 1 + C 3 + O 1 + G 2 + N 1 + O 1 + S 1 + T 1 + I 1 + C 3 = 27 points

Double word
54 pts
Triple word
81 pts

Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).

pharmacognostic

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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15-letter words containing…

Words containing OSTI by length

Longer sequences containing OSTI

Each link adds one letter and keeps only combinations that have words.

Change the last letter of OSTI

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 OSTI in the middle of a word

15-Letter Words With OSTI by the numbers

15-Letter Words With OSTI FAQ

How many fifteen-letter words containing OSTI are there?

There are 7 fifteen-letter words containing OSTI 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 OSTI?

PHARMACOGNOSTIC is worth 27 points in Scrabble before any bonus squares. Other strong options are PROGNOSTICATIVE (23), PROGNOSTICATING (21), PROGNOSTICATION (20).

What are some common fifteen-letter words containing OSTI?

Everyday examples include PROGNOSTICATION, PROGNOSTICATING, PROGNOSTICATORS. Sort the list by "Most common" to see the familiar words first.

Which rare fifteen-letter words containing OSTI score well?

Uncommon but valid choices include PHARMACOGNOSTIC (27), PROGNOSTICATIVE (23), POSTINOCULATION (19), POSTIRRADIATION (18). Few players know them, so they can catch an opponent off guard.