9-Letter Words Matching ____DU___

There are 29 9-letter words that match ____DU___. 11 are common words, such as AQUEDUCTS and ARCHDUKES. A rarer one is SUBADULTS. In this set, S is the most frequent open letter (22 words). 4 words contain a doubled letter.

Full list 29

Common words

aqueductsarchdukesassiduityassiduousdeciduousglandularresidualsscheduledschedulerschedulesstardustsarchducal
aqueductsarchdukesassiduityassiduousdeciduousglandularresidualsscheduledschedulerschedulesstardustsarchducalarchduchyresiduaryshelducksunreducedaeroductsamygdulescoenduredcoenduresdeciduateglandulesmoondustsnonadultsreinducedreinducesreinductsresiduumssubadults

About this list

Words
29 (11 common words)
Common example
aqueducts
Rare example
subadults
Doubled letters
4
Ending in S
18
Most frequent letter
S (22)

Questions

How many 9-letter words matching ____du___ are there?

29. 11 of them are common words.

What is a common example?

AQUEDUCTS is among the common words in this set.