12-Letter Words Containing RTH

There are 65 12-letter words that contain RTH. 35 are common words, such as AFTERTHOUGHT and AIRWORTHIEST. A rarer one is UNORTHODOXLY. 8 words contain a doubled letter.

Full list 65

Common words

afterthoughtairworthiestarthroscopesarthroscopicearthenwaresearthinessesearthshakingforthcomingsforthrightlyfurtheranceshearthstoneshyperthyroid
afterthoughtairworthiestarthroscopesarthroscopicearthenwaresearthinessesearthshakingforthcomingsforthrightlyfurtheranceshearthstoneshyperthyroidmirthfulnessneanderthalsneverthelessnortheasternnortheastersnorthernmostnorthwesternnorthwestersnoteworthierorthodontiasorthodonticsorthodontistorthographicorthopaedicsorthopaedistorthopedistsoverthinkingoverthrowingpraiseworthyseaworthiestunearthliestunworthinessworthinessesarthrosporescreditworthyepanorthosesepanorthosisfarthingaleshyperthermiaorthodontureorthogenesisorthogeneticorthogonallyorthopteransorthopterousorthorhombicorthotropousunnewsworthyanorthositesanorthositicearthmovingsearthshakershyperthermicneoorthodoxynoteworthilyorthocentersorthogenesesorthopteristorthopteroidsynarthrosessynarthrosisunderthrustsunorthodoxly

About this list

Words
65 (35 common words)
Common example
afterthought
Rare example
unorthodoxly
Doubled letters
8
Ending in S
33

Questions

How many 12-letter words containing rth are there?

65. 35 of them are common words.

What is a common example?

AFTERTHOUGHT is among the common words in this set.