9-Letter Words Containing NIU

There are 30 9-letter words that contain NIU. 13 are common words, such as ACTINIUMS and ALUMINIUM. A rarer one is UREDINIUM. In this set, M is the most frequent open letter (30 words). 7 words contain a doubled letter.

Full list 30

Common words

actiniumsaluminiumbienniumsgeraniumsgermaniumharmoniumneptuniumplutoniumpoloniumsrutheniumseleniumstitaniums
actiniumsaluminiumbienniumsgeraniumsgermaniumharmoniumneptuniumplutoniumpoloniumsrutheniumseleniumstitaniumszirconiumammoniumsdecenniumdiazoniumeuphoniumhymeniumssyconiumstrienniumvirginiumdominiumshydroniumilliniumsmeconiumsoogoniumspeponiumspolliniumsulfoniumuredinium

About this list

Words
30 (13 common words)
Common example
actiniums
Rare example
uredinium
Doubled letters
7
Ending in S
14
Most frequent letter
M (30)

Questions

How many 9-letter words containing niu are there?

30. 13 of them are common words.

What is a common example?

ACTINIUMS is among the common words in this set.