RAILBUSSES is a playable word

railbus Scrabble® Dictionary

noun
pl. railbuses or railbusses
a passenger car equipped for operation on rails
440 Playable Words can be made from "RAILBUSSES"
   2-Letter Words (18 found)
   8-Letter Words (6 found)
   9-Letter Words (2 found)
   10-Letter Words (1 found)