There are 83 words that end with 'aster'.
Note: These 83 words that end with 'aster' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words end with master, caster, laster, easter, oaster, taster, baster, faster, haster, iaster, daster, gaster, naster, paster, raster, saster, vaster, waster.