Definitions
1.InterjectionAlternative form of hello (“greeting”).
2.InterjectionA cry of surprise.
3.NounThe cry "hallo!"
4.NounA shout of exultation.
5.VerbTo shout, or to call with a loud voice.
6.VerbTo chase while shouting "hallo!"
7.VerbTo cry "hallo" (to someone).
8.VerbTo shout (something).