Questions & Answers about Ο ήχος ήταν τρομακτικός.
Ο is the masculine singular definite article, so it means the.
In this sentence:
- ο ήχος = the sound
Greek articles change for gender, number, and case, unlike English the, which always stays the same.
Here ο is used because ήχος is:
- masculine
- singular
- nominative (the subject of the sentence)
In Greek, every noun has a grammatical gender: masculine, feminine, or neuter.
Ήχος (sound) is simply a masculine noun. That is something you learn along with the word, just as you learn plural forms or pronunciation.
So you should ideally learn it as:
- ο ήχος = the sound
not just ήχος by itself.
That helps you remember:
- its gender
- which article it takes
- how adjectives must agree with it