Questions & Answers about Ο τιμοκατάλογος είναι εδώ.
Ο is the definite article the.
In this sentence, it tells you that τιμοκατάλογος is a masculine singular noun in the nominative case, because it is the subject of the sentence.
So:
- ο = the for a masculine singular noun
- it matches τιμοκατάλογος
Because this is the first word of the sentence, it is written with a capital Ο.
Τιμοκατάλογος is masculine.
You can tell partly because:
- it takes the article ο
- it ends in -ος, which is often masculine in Modern Greek
Be careful, though: not every noun ending in -ος is masculine. But in this case, it is.
It is in the nominative case.
Why? Because it is the subject of the sentence — the thing that is here.
That is why you get:
- ο τιμοκατάλογος
If it were an object or followed certain prepositions, it might appear in another case.