hallo

(noun, verb, interjection)

interjection

1. A variant of hello

2. A cry of surprise.

noun

1. The cry "hallo!"

2. A shout of exultation.

verb

1. (intransitive) To shout, or to call with a loud voice.

2. (transitive) To chase while shouting "hallo!"

3. (transitive) To cry "hallo" (to someone).

4. (transitive) To shout (something).