To call out, cry out, or shout, in order to call attention, or in answer to some one who hails, or in play, or as an expression of pain.

To urge or call by shouting.

noun. The cry “Hollo!”

Ho there! hello! an exclamation to some one at a distance, in order to call attention, or in answer to one who hails: like halloo, holla, and hello, interj.

interjection. Ho there; stop; attend; hence, a loud cry or a call to attract attention; a halloo.

intransitive verb. To call out or exclaim; to halloo.

interjection. Hey, hullo

noun. A cry of "hollo"

verb. To cry "hollo"

verb. encourage somebody by crying hollo

verb. utter a sudden loud cry

noun. a very loud utterance (like the sound of an animal)

verb. cry hollo

"Shakespeare was the first to set down the ancestor word hollo, when he used it in his play Titus Andronicus: “Hollo, what storm is this?”"