13-Letter Words Matching __U_________Y

There are 21 13-letter words that match __U_________Y. 6 are common words, such as EDUCATIONALLY and EQUIDISTANTLY. A rarer one is TRUSTWORTHILY. In this set, T is the most frequent open letter (21 words). 6 words contain a doubled letter.

Full list 21

educationallyequidistantlyfrustratinglyheuristicallysoutheasterlysouthwesterlyaluminothermycountermelodymountebankerytautologouslyadumbrativelydeuteranomalyenumerabilityequilibratoryequipollentlyfaunisticallymountainouslyneurotoxicitysqueezabilitytouristicallytrustworthily

About this list

Words
21 (6 common words)
Common example
educationally
Rare example
trustworthily
Doubled letters
6
Ending in S
0
Most frequent letter
T (21)

Questions

How many 13-letter words matching __u_________y are there?

21. 6 of them are common words.

What is a common example?

EDUCATIONALLY is among the common words in this set.