ahoy

ohoi! puhekieltä Used to hail a ship, a boat or a person, or to attract attention.
1751: While he was thus occupied, a voice, still more uncouth than the former, bawled aloud, ‘Ho! the house, a-hoy!’, ''(w), (w).
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To hail with a cry of "ahoy".
An utterance of this interjection.

There were many ahoys heard from the approaching ship.