Hallo (interjection)

1. A greeting used as a casual hello or hi.
2. An informal way to say hello.

Origin:

From middle english halow ("hello"), from old english hāl ("healthy"), from proto-germanic *hailaz ("healthy"), from proto-indo-european *kóyos ("healthy"). compare hale, heal.

Examples:

1. Hallo, how are you today?
2. Hallo, it's been a long time.
3. Hallo, I"m glad you"re here.
4. Hallo, I hope you're having a good day.
5. Hallo, it's nice to meet you.