9-Letter Words Containing IUM

There are 134 9-letter words that contain IUM. 52 are common words, such as ACTINIUMS and ALLUVIUMS. A rarer one is VESTIGIUM. In this set, S is the most frequent open letter (74 words). 24 words contain a doubled letter.

Full list 134

Common words

actiniumsalluviumsaluminiumamericiumaquariumsbacteriumberkeliumberylliumbienniumschromiumsdeliriumsdeuterium
actiniumsalluviumsaluminiumamericiumaquariumsbacteriumberkeliumberylliumbienniumschromiumsdeliriumsdeuteriumeffluviumemporiumsencomiumseuropiumsfranciumsgeraniumsgermaniumgymnasiumharmoniumlutetiumsmagnesiumneodymiumneptuniumnobeliumspalladiumplutoniumpoloniumspotassiumpresidiumrubidiumsrutheniumsamariumsscandiumsseleniumssolariumsstrontiumsymposiumtelluriumterrariumthalliumstitaniumstrapeziumtrilliumstriumphaltriumphedtriumvirsvanadiumsvivariumsytterbiumzirconiumammoniumsanthodiumanthuriumbdelliumscaladiumscaldariumcollegiumcollyriumcolumbiumcontagiumctenidiumcymatiumsdecenniumdentaliumdiazoniumdichasiumelateriumepicediumeuphoniumfastigiumgelsemiumgynoeciumherbariumhospitiumhymeniumsmanubriummarsupiummediumismperidiumspycnidiumrhinariumrhizobiumsacrariumsensoriumseptariumsyconiumssyncytiumtrienniumtrifoliumtriforiumtriumviriuropygiumvirginiumbothriumsbronchiumcalvariumcoccidiumcolluviumcriteriumcymbidiumdidymiumsdiluviumsdominiumsepimysiumeulogiumsexordiumsgynaeciumhydroniumilliniumsilluviumsimperiumsindiciumslixiviumsluteciumsmasuriumsmazaediummeconiumsoncidiumsoogoniumsopiumismspeponiumspolliniumpsylliumspterygiumreptiliumrosariumsscholiumssiliciumssulfoniumsympodiumurediniumvestigium

About this list

Words
134 (52 common words)
Common example
actiniums
Rare example
vestigium
Doubled letters
24
Ending in S
54
Most frequent letter
S (74)

Questions

How many 9-letter words containing ium are there?

134. 52 of them are common words.

What is a common example?

ACTINIUMS is among the common words in this set.