LASSO is a playable word

lasso Scrabble® Dictionary

verb
lassoed, lassoing, lassos or lassoes
to catch with a lasso (a long rope with a running noose)
21 Playable Words can be made from "LASSO"
   2-Letter Words (6 found)
   3-Letter Words (6 found)
   4-Letter Words (7 found)
   5-Letter Words (2 found)