What is the meaning of Isä?

mother

father

father

father (male parent; male who has sired a baby, that man relative to his children)

father(s), forefather(s), forebear(s), ancestor(s)

father (term of respectful address for a priest)

father (pioneering figure; progenitor)

alternative letter-case form of Isä (Father, God)

father (male parent of an animal)

Source: wiktionary.org