Definition:
Compare sis with other words:
sip vs. sis
ais vs. sis
sib vs. sis
sis vs. yis
nis vs. sis
sis vs. vis
sis vs. sist
bis vs. sis
sis vs. sise
isis vs. sis
sis vs. wis
sig vs. sis
sie vs. sis
dis vs. sis
sir vs. sis
sis vs. sit
sin vs. sis
sic vs. sis
his vs. sis
sis vs. six
intelligence vs. sis
paw vs. sis
sis vs. sister