This is the 33rd most frequent Estonian word.
ära
The Estonian word "ära" means "away," "off," or indicates completion of an action.
Here, "ära" denotes movement away or departure, accompanying a verb of motion to indicate leaving or going away.
Ta sõitis täna hommikul ära.
He left this morning.
In this sentence, "ära" is used as a particle in combination with the imperative mood to express a prohibition or a strong suggestion not to forget something.
Ära unusta oma võtmeid.
Don't forget your keys.
In this context, "ära" emphasizes the action of giving something away, often implying that the item is no longer in the possession of the speaker.