Similar-sounding words in the dictionary:
cichon,
hidden,
lydon,
ridden,
sadden,
saidan,
sawdon,
seddon,
seiden,
sicken,
siddall,
siddell,
siddens,
siddle,
siddons,
sidman,
sidon,
simmon,
sison,
sisson,
sittin',
sitton,
sodden,
soden,
sowden,
sudden,
symon,
whidden,
whiddon 