9-Letter Words Matching ____TB___

There are 14 9-letter words that match ____TB___. 9 are common words, such as FIRSTBORN and FROSTBITE. A rarer one is LIGHTBULB. 3 words contain a doubled letter.

Full list 14

firstbornfrostbiteheartbeatheartburnpolitburosweatbandsweptbackwaistbandwristbandeightballfightbackguestbookpaintballlightbulb

About this list

Words
14 (9 common words)
Common example
firstborn
Rare example
lightbulb
Doubled letters
3
Ending in S
0

Questions

How many 9-letter words matching ____tb___ are there?

14. 9 of them are common words.

What is a common example?

FIRSTBORN is among the common words in this set.