8-Letter Words Matching _____RU_

There are 27 8-letter words that match _____RU_. 4 are common words, such as CEREBRUM and CONSTRUE. A rarer one is VERATRUM. 4 words contain a doubled letter.

Full list 27

Common words

cerebrumconstrueplectrumspectrumantidrugcoenurusdelubrumelectrumngultrumsubshrubsusurrusvariorum
cerebrumconstrueplectrumspectrumantidrugcoenurusdelubrumelectrumngultrumsubshrubsusurrusvariorumanestrusbebeerusdiestrumdiestruseremurusmenstruaphiltrumplastrumpostdrugpoxviruspressrunprovirusreovirusunderrunveratrum

About this list

Words
27 (4 common words)
Common example
cerebrum
Rare example
veratrum
Doubled letters
4
Ending in S
9

Questions

How many 8-letter words matching _____ru_ are there?

27. 4 of them are common words.

What is a common example?

CEREBRUM is among the common words in this set.