13-Letter Words Ending in IUM
- 24 words
- All English dictionaries
- Scrabble points
All 13-Letter Words Ending in IUM 24 words
How common is IUM at the end of thirteen-letter words?
Our combined English word list has 24 thirteen-letter words ending in IUM. They average 21.8 points, the best is HEXAMETHONIUM (30 points) and A is the most common first letter (25%).
- Total words
- 24
- Average Scrabble score
- 21.8
- out of 30 max
- Everyday words
- 0%
- common in ordinary English
- Most common first letter
- A
- 25% of words
Most common first letters
- a 25%
- p 16.7%
- h 8.3%
Top vowel pairs
- iu100%
- ia4.2%
- oa4.2%
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 thirteen-letter word ending in IUM
h 4e 1x 8a 1m 3e 1t 1h 4o 1n 1i 1u 1m 3
H 4 + E 1 + X 8 + A 1 + M 3 + E 1 + T 1 + H 4 + O 1 + N 1 + I 1 + U 1 + M 3 = 30 points
- Double word
- 60 pts
- Triple word
- 90 pts
Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).
hexamethonium
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
13-letter words ending in…
Words ending in IUM by length
Add a letter before IUM
Each link adds one letter and keeps only combinations that have words.
Change the first letter of IUM
Trending word lists
Five-letter lists built from the letters of yesterday's Wordle answer. The set changes every day.
- 5-letter words ending in OO
- 5-letter words ending in HOO
- 5-letter words starting with YA
- 5-letter words with A
- 5-letter words ending in O
- 5-letter words starting with YAH
- 5-letter words with H
- 5-letter words with AH
- 5-letter words with O
- 5-letter words with AHO
- 5-letter words with HO
- 5-letter words starting with Y
How to use this word list
Why endings like IUM matter
13-Letter Words Ending in IUM by the numbers
13-Letter Words Ending in IUM FAQ
How many thirteen-letter words ending in IUM are there?
There are 24 thirteen-letter words ending in IUM 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 thirteen-letter word ending in IUM?
HEXAMETHONIUM is worth 30 points in Scrabble before any bonus squares. Other strong options are HYPOCHONDRIUM (29), ZOOSPORANGIUM (27), MYCOBACTERIUM (26).
Which rare thirteen-letter words ending in IUM score well?
Uncommon but valid choices include HEXAMETHONIUM (30), PYCNOCONIDIUM (25), AMPHIGASTRIUM (23), DECAMETHONIUM (23). Few players know them, so they can catch an opponent off guard.