7-Letter Words Matching ____RU_

There are 30 7-letter words that match ____RU_. 14 are common words, such as CHIRRUP and COVERUP. A rarer one is SISTRUM. In this set, M is the most frequent open letter (16 words). 4 words contain a doubled letter.

Full list 30

Common words

chirrupcoverupdecorumeardrumfulcrumhumdrumhumerusnostrumoverrunpapyruspylorusrostrum
chirrupcoverupdecorumeardrumfulcrumhumdrumhumerusnostrumoverrunpapyruspylorusrostrumstirruptantrumcentrumchetrumforerungrugrusicterusjabiruslabarumlustrummillrunnondrugpeloruselytrumkashrutoestrumoestrussistrum

About this list

Words
30 (14 common words)
Common example
chirrup
Rare example
sistrum
Doubled letters
4
Ending in S
8
Most frequent letter
M (16)

Questions

How many 7-letter words matching ____ru_ are there?

30. 14 of them are common words.

What is a common example?

CHIRRUP is among the common words in this set.