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15-Letter Words With OAST

  • 4 words
  • All English dictionaries
  • Scrabble points
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All 15-Letter Words With OAST 4 words

How often does OAST appear in fifteen-letter words?

Our combined English word list has 4 fifteen-letter words containing OAST. They average 19.8 points and the best is ARCHEOASTRONOMY (25 points).

Total words
4
Average Scrabble score
19.8
out of 25 max
Everyday words
0%
common in ordinary English
Most common ending
S
50% of words

Most common last letters

  • s 50%
  • d 25%
  • y 25%

Top vowel pairs

  • oa100%
  • au25%
  • eo25%

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 OAST

a 1r 1c 3h 4e 1o 1a 1s 1t 1r 1o 1n 1o 1m 3y 4

A 1 + R 1 + C 3 + H 4 + E 1 + O 1 + A 1 + S 1 + T 1 + R 1 + O 1 + N 1 + O 1 + M 3 + Y 4 = 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).

archeoastronomy

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 OAST by length

Longer sequences containing OAST

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

Change the last letter of OAST

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 OAST in the middle of a word

15-Letter Words With OAST by the numbers

15-Letter Words With OAST FAQ

How many fifteen-letter words containing OAST are there?

There are 4 fifteen-letter words containing OAST 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 OAST?

ARCHEOASTRONOMY is worth 25 points in Scrabble before any bonus squares. Other strong options are BIOASTRONAUTICS (19), ROLLERCOASTERED (18), TOASTMISTRESSES (17).

Which rare fifteen-letter words containing OAST score well?

Uncommon but valid choices include ARCHEOASTRONOMY (25), ROLLERCOASTERED (18). Few players know them, so they can catch an opponent off guard.