13-Letter Words Starting With TH

There are 83 13-letter words that start with TH. 22 are common words, such as THANKLESSNESS and THANKSGIVINGS. A rarer one is THYROTROPHINS. 21 words contain a doubled letter.

Full list 83

Common words

thanklessnessthanksgivingstheatricalitythenceforwardtheologicallytheoreticallytheoreticiansthermodynamicthermonuclearthermoplasticthirstinessesthoroughbreds
thanklessnessthanksgivingstheatricalitythenceforwardtheologicallytheoreticallytheoreticiansthermodynamicthermonuclearthermoplasticthirstinessesthoroughbredsthoroughfaresthoroughgoingthoughtlesslythreateninglythriftinessesthroatinessesthundercloudsthundershowerthunderstormsthunderstruckthanatologistthaumaturgisttheatricalizetherapeuticaltheriomorphicthermesthesiathermocouplesthermogenesisthermometriesthermosettingthermospheresthermostaticsthermotensilethermotherapythigmotropismthoracoplastythoroughpacedthoroughwortsthremmatologythrombokinasethundersquallthalassaemiasthalassocracythalassocratsthanatologiesthaumaturgiestheatergoingstheatricalismtheocentrismstheophyllinestheorizationsthermochemistthermoelementthermoformingthermographicthermophilousthermosphericthermostatingthermostattedthermotropismthiabendazolethimbleriggedthimbleriggerthinkablenessthioridazinesthoracotomiesthoroughbracethrasonicallythreadinessesthroatlatchesthrottleholdsthunderstonesthunderstrikethunderstrokethymectomizedthymectomizesthyroglobulinthyroidectomythyroiditidesthyroiditisesthyrotrophins

About this list

Words
83 (22 common words)
Common example
thanklessness
Rare example
thyrotrophins
Doubled letters
21
Ending in S
36

Questions

How many 13-letter words starting with th are there?

83. 22 of them are common words.

What is a common example?

THANKLESSNESS is among the common words in this set.