Questions & Answers about Ο κιθαρίστας έχει κιθάρα.
Ο is the masculine singular definite article in the nominative case.
Here it means the, so Ο κιθαρίστας = the guitarist.
It matches κιθαρίστας because that noun is:
- masculine
- singular
- the subject of the sentence
So Greek articles change depending on gender, number, and case.
κιθαρίστας is a masculine singular noun and it is the subject of the sentence.
In this sentence:
- Ο κιθαρίστας = the subject
- έχει = the verb
- κιθάρα = the object
The ending -ας is very common for masculine nouns in Greek.