Αυτή είναι μία κιλοβατώρα.

This is one kilowatt-hour.

Breakdown of Αυτή είναι μία κιλοβατώρα.

• είμαι: to be
• μία: one
• αυτή: this one
• η κιλοβατώρα: kilowatt-hour

Questions & Answers about Αυτή είναι μία κιλοβατώρα.

Why does the sentence start with Αυτή? Does it mean this?

Yes. Αυτή means this here.

In this sentence, it is the feminine singular form of this, because κιλοβατώρα is a feminine noun in Greek.

Greek words like this change form depending on the gender and number of the noun:

• αυτός = this (masculine)
• αυτή = this (feminine)
• αυτό = this (neuter)

So Greek uses Αυτή because it matches κιλοβατώρα.

Why is it μία and not ένα?

Because κιλοβατώρα is a feminine noun.

The word for one in Greek changes for gender:

• ένας = one (masculine)
• μία / μια = one (feminine)
• ένα = one (neuter)

Since κιλοβατώρα is feminine, you need the feminine form μία.

Is μία just the number one, or does it also mean a/an?