7-Letter Words Matching ____OI_

There are 131 7-letter words that match ____OI_. 37 are common words, such as ADENOID and AIRFOIL. A rarer one is ZINCOID. In this set, D is the most frequent open letter (90 words). 5 words contain a doubled letter.

Full list 131

Common words

adenoidairfoilameboidandroidbitcoinborzoisboudoirchamoischamoixchoroidcolloidconjoin
adenoidairfoilameboidandroidbitcoinborzoisboudoirchamoischamoixchoroidcolloidconjoindespoildiploidembroilexploitfactoidfibroidfungoidgumboilhaploidintroitmastoidparboilpurloinsequoiasirloinsteroidsubjoinsubsoiltabloidthyroidtinfoiltopsoiltrefoilturmoiltyphoidacaroidambroidamyloidaneroidastroidbenzoicbenzoincestoidcheloidcirsoidcissoidcouloircricoidcrinoidctenoidcycloidcystoiddeltoiddentoiddermoiddesmoiddianoiadiscoiddisjoinepizoicethmoidfibroingarboilglenoidgloboidgobioidhistoidhyaloidhydroidlabroidligroinlithoidmattoidmyeloidnegroidobovoidoctroisosteoidpissoirplacoidpreboilrhizoidsarcoidsialoidsigmoidsparoidspiroidtheroidviscoidxiphoidacyloinagatoidanthoidcactoidcoccoidcormoiddiploicemeroidericoideuploidglonoinhaemoidhyenoidhypnoidlentoidlianoidmilfoilmiscoinmisjoinnaevoidneuroidoceloidochroidpercoidphytoidpotboilpygmoidquinoidrenvoissautoirshamoissimioidsporoidstyloidtravoisturkoisvalgoidzebroidzincoid

About this list

Words
131 (37 common words)
Common example
adenoid
Rare example
zincoid
Doubled letters
5
Ending in S
7
Most frequent letter
D (90)

Questions

How many 7-letter words matching ____oi_ are there?

131. 37 of them are common words.

What is a common example?

ADENOID is among the common words in this set.