9-Letter Words Matching _____OO__

There are 151 9-letter words that match _____OO__. 72 are common words, such as ANTEROOMS and APPALOOSA. A rarer one is WORMROOTS. In this set, S is the most frequent open letter (148 words). 151 words contain a doubled letter.

Full list 151

Common words

anteroomsappaloosababyhoodsbackwoodsballroomsbankbooksbasswoodsbathroomsbentwoodsbucktoothcalaboosecashbooks
anteroomsappaloosababyhoodsbackwoodsballroomsbankbooksbasswoodsbathroomsbentwoodsbucktoothcalaboosecashbookscesspoolschapbookscookbookscopybookscrowfootsdarkroomsdeadwoodsdisproofsdoubloonsfirewoodsfishhooksflatfootsfootlooseforedoomsforenoonsgirlhoodshandbookshardwoodsheadroomsheirloomshomeroomshymnbooksironwoodsjackbootsmacaroonsmushroomsnewsroomsnotebooksoffshootsoverbooksovercooksoverlookspassbooksplaybooksplayroomspoltroonspoolroomspulpwoodsrestroomsrosewoodsseafloorsshampooedshampooershowroomssickroomssoftwoodssongbooksspittoonsstudbooksteaspoonstextbookstollboothtrapdoorswardroomswashroomswordbooksworkbooksworkroomswormwoodsyearbooksalumrootsbackroomsbearwoodsbeefwoodsbeetrootsbillhookscasebookscoatroomscordwoodscorkwoodsdatebooksforetoothkingwoodslinaloolsnainsookspinewoodssaleroomsslipnoosesourwoodsteakwoodswayzgooseagalwoodsairproofsaunthoodsbarstoolsbigaroonsbluebooksbluewoodsboathooksclubroomsclubrootscodebookscrampoonsfireroomsfolkmootsforeboomsforehoofsfreebootsfuelwoodsgombroonshandloomshardbootshornbookshotbloodskinghoodslacewoodsladyhoodslatewoodsmaidhoodsmarkhoorsmilkwoodsmonkhoodsoctoroonsoutbloomsoutscoopsoutshootsovercoolspicaroonspinkrootspokerootsporkwoodsquadroonsreaphooksreschoolsrigadoonsroserootssasswoodsselfhoodsserfhoodssesspoolsshalloonsskiddooedspontoonssubfloorstoolroomswareroomswifehoodswildwoodswormroots

About this list

Words
151 (72 common words)
Common example
anterooms
Rare example
wormroots
Doubled letters
151
Ending in S
140
Most frequent letter
S (148)

Questions

How many 9-letter words matching _____oo__ are there?

151. 72 of them are common words.

What is a common example?

ANTEROOMS is among the common words in this set.