hello
/həˈloʊ/
EN
A common informal or formal greeting used to greet someone, acknowledge presence, or begin a conversation.
Hello, it's nice to finally meet you in person.
Etymology
Derived from the early 19th century English variant of earlier terms like hallo and holla, which originated from Old High German holā, a call to attract attention. It became widely used as a greeting after the invention of the telephone.
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