12-Letter Words Matching _U_D________

There are 33 12-letter words that match _U_D________. 13 are common words, such as FUNDAMENTALS and MUDDLEHEADED. A rarer one is SUBDIVIDABLE. In this set, I is the most frequent open letter (25 words). 7 words contain a doubled letter.

Full list 33

Common words

fundamentalsmuddleheadedoutdistancedoutdistancesquadrangularquadraphonicquadrenniumsquadricepsesquadrillionsquadriplegiaquadriplegicsubdivisions
fundamentalsmuddleheadedoutdistancedoutdistancesquadrangularquadraphonicquadrenniumsquadricepsesquadrillionsquadriplegiaquadriplegicsubdivisionssuddennessesduodecillionquadrinomialquadrivalentquadrumanoussubdebutantesubdiaconatesubdirectorysubdominantswunderkinderdunderheadedfundraisingsoutdatednessoutdeliveredoutdesigningquadrennialsquadriphonicsubdecisionssubdirectorssubdistrictssubdividable

About this list

Words
33 (13 common words)
Common example
fundamentals
Rare example
subdividable
Doubled letters
7
Ending in S
15
Most frequent letter
I (25)

Questions

How many 12-letter words matching _u_d________ are there?

33. 13 of them are common words.

What is a common example?

FUNDAMENTALS is among the common words in this set.