11-Letter Words Matching _____UP____

There are 12 11-letter words that match _____UP____. 8 are common words, such as BANKRUPTING and CHIRRUPPING. A rarer one is QUADRUPOLES. 3 words contain a doubled letter.

Full list 12

bankruptingchirruppingquadrupedalquadrupletsquadruplingquintupletsquintuplingreoccupyingpostnuptialantenuptialoversuppingquadrupoles

About this list

Words
12 (8 common words)
Common example
bankrupting
Rare example
quadrupoles
Doubled letters
3
Ending in S
3

Questions

How many 11-letter words matching _____up____ are there?

12. 8 of them are common words.

What is a common example?

BANKRUPTING is among the common words in this set.