SEISER is a playable word

seiser Scrabble® Dictionary

noun
pl. seisers
seizer
43 Playable Words can be made from "SEISER"
   2-Letter Words (5 found)
   3-Letter Words (13 found)
   4-Letter Words (14 found)
   5-Letter Words (8 found)
   6-Letter Words (3 found)