ei skje · spoon
Feminine (ei)
Indefinite singular
ei skje
Definite singular
skjea
Indefinite plural
skjeer
Definite plural
skjeene
Feminine nouns (ei) can always be written with en as well: ei bok, boka or en bok, boken. Both are correct Bokmål.
How to guess the gender Nouns: gender and articles