Questions & Answers about Η υπόθεση είναι κλειστή.
Because υπόθεση is a feminine noun in Greek.
Greek nouns have grammatical gender, so the article and adjective must match the noun:
- ο = masculine
- η = feminine
- το = neuter
Since υπόθεση is feminine, you get:
- η υπόθεση
- κλειστή (feminine form of closed)
So the whole sentence shows gender agreement.
Because it agrees with υπόθεση, which is feminine singular.
The adjective κλειστός changes form depending on gender:
- masculine: κλειστός
- feminine: κλειστή
- neuter: κλειστό
So here:
- η υπόθεση = feminine singular
- therefore κλειστή = feminine singular adjective
This is very common in Greek: adjectives must agree with the noun in gender, number, and case.