Is “Hallo” a Scrabble word?

1.The cry "hallo!"

2.A shout of exultation.

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

2.To chase while shouting "hallo!"

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

1.A cry of surprise.

1.A greeting (salutation) said when meeting someone or acknowledging someone’s arrival or presence.

“Hello, everyone.”

2.A greeting used when answering the telephone.

“Hello? How may I help you?”

3.A call for response if it is not clear if anyone is present or listening, or if a telephone conversation may have been disconnected.

“Hello? Is anyone there?”