What is the meaning of Sii?

fish

to be

to have (used in forming the perfect tense)

seed

fruit

a grain of rice

pill

Alternative spelling of sie

genet

water

water

urine

to urinate

Synonym of siihirsi

second-person singular imperative of essere

genitive singular of sion

to say

they (more than two of them)

Obsolete form of sfii.

to give

iff

Source: wiktionary.org