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15-Letter Words With SU

  • 249 words
  • All English dictionaries
  • Scrabble points
Dictionary

Popular 15-Letter Words With SU

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

All 15-Letter Words With SU 249 words

How often does SU appear in fifteen-letter words?

Our combined English word list has 249 fifteen-letter words containing SU. They average 21.9 points, the best is PEROXYSULPHURIC (34 points) and 48.2% end in S.

Total words
249
Average Scrabble score
21.9
out of 34 max
Everyday words
2%
common in ordinary English
Most common ending
S
48.2% of words

Most common last letters

  • s 48.2%
  • n 11.2%
  • y 10%

Top vowel pairs

  • io32.9%
  • ia12.9%
  • ie8.8%

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 SU

p 3e 1r 1o 1x 8y 4s 1u 1l 1p 3h 4u 1r 1i 1c 3

P 3 + E 1 + R 1 + O 1 + X 8 + Y 4 + S 1 + U 1 + L 1 + P 3 + H 4 + U 1 + R 1 + I 1 + C 3 = 34 points

Double word
68 pts
Triple word
102 pts

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

peroxysulphuric

No dictionary definition on file. This is a valid game word that standard dictionaries rarely cover.

  • Scrabble US
  • Scrabble UK
  • Words With Friends

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Words containing SU by length

Longer sequences containing SU

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

Change the last letter of SU

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 SU in the middle of a word

15-Letter Words With SU by the numbers

15-Letter Words With SU FAQ

How many fifteen-letter words containing SU are there?

There are 249 fifteen-letter words containing SU 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 SU?

PEROXYSULPHURIC is worth 34 points in Scrabble before any bonus squares. Other strong options are SULPHINPYRAZONE (34), SULFAMETHAZINES (32), SULFINPYRAZONES (32).

What are some common fifteen-letter words containing SU?

Everyday examples include UNSUBSTANTIATED, INSUBORDINATION, SUPERSTRUCTURES, SUPERINTENDENCE, SUPERINTENDENCY, SUPERINTENDENTS, INSURRECTIONIST, SUPERSTITIOUSLY. Sort the list by "Most common" to see the familiar words first.

Which rare fifteen-letter words containing SU score well?

Uncommon but valid choices include PEROXYSULPHURIC (34), SULPHINPYRAZONE (34), SULFAMETHAZINES (32), SULFINPYRAZONES (32). Few players know them, so they can catch an opponent off guard.