ο, η, το
Every noun is masculine (ο), feminine (η) or neuter (το).
| Gender | Definite | Indefinite |
|---|---|---|
| masculine | ο | ένας |
| feminine | η | μία |
| neuter | το | ένα |
| plural m./f. | οι | — |
| plural n. | τα | — |
A/an = ένας (m), μία (f), ένα (n).
There is no reliable rule — learn ο/η/το with each word.