According to SOWPODS (the combination of Scrabble dictionaries
used around the world) there are 59 words with the pattern
TRA-----S. That is, nine letter words with 1st letter T and 2nd
letter R and 3rd letter A and 9th letter S. In alphabetical order,
they are:
traceless
traceries
tracheids
trachinus
trachitis
trachomas
trachytes
trackages
trackings
trackless
trackpads
trackways
tractates
tractions
tractuses
tradeless
tradeoffs
traditors
traducers
tragedies
tragopans
trahisons
trailless
trainfuls
trainings
trainless
trainways
traitress
tramlines
trampings
tramplers
tramroads
tranchets
transacts
transects
transepts
transfers
tranships
transires
transmews
transmits
transudes
transumes
trapballs
trapdoors
trapezius
traplines
trapnests
trappings
traprocks
trapuntos
trashcans
trauchles
travelers
travelogs
traverses
travoises
trawlings
trawlnets