9-Letter Words Matching ___I_W___

There are 17 9-letter words that match ___I_W___. 7 are common words, such as BRAINWASH and REVIEWERS. A rarer one is TRAINWAYS. In this set, R is the most frequent open letter (12 words). 8 words contain a doubled letter.

Full list 17

brainwashreviewersreviewingsatinwoodsemisweetstairwaysstairwellbrainwavebrainworkcolicweedrosinweedtulipwooddevilwoodfruitwoodreviewalssemidwarftrainways

About this list

Words
17 (7 common words)
Common example
brainwash
Rare example
trainways
Doubled letters
8
Ending in S
4
Most frequent letter
R (12)

Questions

How many 9-letter words matching ___i_w___ are there?

17. 7 of them are common words.

What is a common example?

BRAINWASH is among the common words in this set.