10-Letter Words Matching _____NW___

There are 13 10-letter words that match _____NW___. 6 are common words, such as BUTTONWOOD and COMMONWEAL. A rarer one is POISONWOOD. In this set, O is the most frequent open letter (12 words). 10 words contain a doubled letter.

Full list 13

buttonwoodcommonwealcottonwoodheavenwardjimsonweednationwidecottonweedpigeonwingribbonwoodsappanwoodspleenwortwoodenwarepoisonwood

About this list

Words
13 (6 common words)
Common example
buttonwood
Rare example
poisonwood
Doubled letters
10
Ending in S
0
Most frequent letter
O (12)

Questions

How many 10-letter words matching _____nw___ are there?

13. 6 of them are common words.

What is a common example?

BUTTONWOOD is among the common words in this set.