Ending in IUM
8 words · highest scoring is symposium at 18 points
8Words
About 9 Letter Words Ending in IUM
There are 8 nine letter words ending in IUM in our dictionary. The highest scoring is symposium at 18 points, counting tile values before any double or triple squares. 8 of them are common words rather than tournament-only fill — ALUMINIUM, GYMNASIUM, PLUTONIUM among them.
The list leads with everyday words so the ones you recognise come first; sort by Scrabble points to put the best play on top, or switch to A-Z to scan alphabetically. Select any word to read its definition and see which dictionaries accept it. This list is also searched as words ending with IUM — it is the same set either way.
For a wider net, try 9 Letter Words With IUM or Words Ending in IUM, which drops the length limit entirely.
9 Letter Words Ending in IUM at a Glance
Highest Scoring 9 Letter Words Ending in IUM
- symposium18
- gymnasium17
- bacterium15
- magnesium14
- palladium14
- aluminium13
- plutonium13
- potassium13
Common 9 Letter Words Ending in IUM
- aluminium13
- bacterium15
- gymnasium17
- magnesium14
- palladium14
- plutonium13
- potassium13
- symposium18
9 Letter Words Ending in IUM by First Letter
9 Letter Words Ending in IUM Defined
- aluminiumNoun · 13 points
- the chemical element of atomic number 13, a light silvery-grey metal
- bacteriumNoun · 15 points
- a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease
- gymnasiumNoun · 17 points
- a room or building equipped for gymnastics, games, and other physical exercise
- palladiumNoun · 14 points
- the chemical element of atomic number 46, a rare silvery-white metal resembling platinum
- plutoniumNoun · 13 points
- the chemical element of atomic number 94, a dense silvery radioactive metal of the actinide series, used as a fuel in nuclear reactors and as an explosive in nuclear fission weapons. Plutonium only occurs in trace amounts in nature but is manufactured in nuclear reactors from uranium-238
- potassiumNoun · 13 points
- the chemical element of atomic number 19, a soft silvery-white reactive metal of the alkali metal group
9 Letter Words Ending in IUM: Questions
How many nine letter words ending in IUM are there?
There are 8 nine letter words ending in IUM in our dictionary, and 8 of them are common words most players will already know.
What is the highest scoring word among nine letter words ending in IUM?
SYMPOSIUM is the highest scoring option at 18 points, counting tile values only and before any double or triple squares.
What are some common nine letter words ending in IUM?
ALUMINIUM, GYMNASIUM, PLUTONIUM are among the most familiar nine letter words ending in IUM. Select any word in the list to read its definition.
Are these nine letter words ending in IUM valid in Scrabble and Words With Friends?
Every word is drawn from a tournament word list, so most are playable everywhere. Use the dictionary selector to narrow the list to Scrabble US (NWL2023), Scrabble UK (CSW24) or Words With Friends and see only the words that game accepts.