Questions & Answers about Ο μάρτυρας περιμένει έξω.
ο is the definite article in Greek, equivalent to the in English.
In this sentence:
- ο = the
- μάρτυρας = witness
So ο μάρτυρας means the witness.
Because μάρτυρας is singular and here it is used as the subject, Greek uses the masculine singular subject-form article ο.
Grammatically, μάρτυρας is usually treated as a masculine noun in Modern Greek, which is why it takes ο here.
However, in real usage it can refer to a witness of either sex, depending on context. Greek sometimes uses masculine grammatical forms for nouns referring to people regardless of natural gender, though in some contexts speakers may prefer other wording to make gender explicit.
So in this sentence, ο μάρτυρας is grammatically masculine, but the actual person could be male or female unless context tells you more.
The ending -ας is a very common ending for masculine nouns in Greek.
Many masculine nouns look like this in the dictionary form / subject form:
- ο μαθητής = the student
- ο πατέρας = the father
- ο μάρτυρας = the witness
So -ας is not unusual at all. It is simply part of the noun’s declension pattern.