Similar-sounding words in the dictionary:
4 letters:
bast,
cast,
fast,
gast,
hast,
kast,
last,
mast,
nast,
pact,
pant,
pask,
paso,
pass,
patt,
pest,
post,
rast,
vast 6 letters:
gassed,
massed,
packed,
pasque,
passat,
passer,
passey,
passow,
paster,
pastor,
pieced,
pursed,
passed 