What is the meaning of Sinn?

Obsolete spelling of sin.

time, times

singular imperative of sinnen

time, as in occurrence

Third-person reflexive possessive determiner: his (own), her (own), its (own), their (own)

we, us

we

to be

mind

mind

alternative form of synn

alternative form of sínn (“one’s”)

time, occurrence

first-person plural pronoun; we, us

Source: wiktionary.org