12-Letter Words Matching B_____U_____

There are 18 12-letter words that match B_____U_____. 10 are common words, such as BARBITURATES and BELEAGUERING. A rarer one is BLACKGUARDED. In this set, L is the most frequent open letter (13 words). 8 words contain a doubled letter.

Full list 18

barbituratesbeleagueringbellybuttonsbilingualismblissfulnessblockbustersblockbustingbloodsuckersbloodsuckingboastfulnessblackcurrantblackguardlybackcourtmanbackcourtmenbibulousnessbioacousticsbiuniquenessblackguarded

About this list

Words
18 (10 common words)
Common example
barbiturates
Rare example
blackguarded
Doubled letters
8
Ending in S
9
Most frequent letter
L (13)

Questions

How many 12-letter words matching b_____u_____ are there?

18. 10 of them are common words.

What is a common example?

BARBITURATES is among the common words in this set.