Questions & Answers about Ο λογαριασμός είναι ληξιπρόθεσμος.
Because λογαριασμός is a masculine noun in Greek. The definite article has to match the noun’s gender, number, and case.
So in the nominative singular:
- ο = masculine
- η = feminine
- το = neuter
Since λογαριασμός is masculine singular, it takes ο.
It is a masculine noun. In this sentence, it is the subject of the verb είναι.
Many masculine Greek nouns in the nominative singular end in -ος, and λογαριασμός follows that very common pattern.
Because ληξιπρόθεσμος is an adjective, and Greek adjectives usually agree with the noun they describe in:
- gender
- number
- case
Since λογαριασμός is masculine singular nominative, the adjective must also be masculine singular nominative, so it appears as ληξιπρόθεσμος.
If the noun were feminine or neuter, the adjective would normally change form too.