helloo - meaning and definition. What is helloo
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Online Dictionary

What (who) is helloo - definition

SALUTATION OR GREETING IN THE ENGLISH LANGUAGE
Hi!; Hallo; Hi there; Hellow; Hallos; Hellos; Halloo; Holloa; Halloa; Helloo; Hiya; List of words for hello; List of Words for Hello; HELLO; Hi/hello; Hello!
  • The greeting "Hello" became associated with telephones in the late 19th century. Postcard circa 1905–1915

helloo         
What's happening? Best said with an upperclass British accent.
Why, helloo! Why aren't you at work?
Halloa         
·- ·see Halloo.
halloo         
I. v. n.
Shout, call, cry out.
II. n.
Holla, shout, call.

Wikipedia

Hello

Hello is a salutation or greeting in the English language. It is first attested in writing from 1826.

Examples of use of helloo
1. I want a word with you, OK?‘ ‘You what?‘ he says, and I‘m just, like, ‘Helloo?‘ And he‘s well miffed, know what I mean?" It‘s as though we need reassurance all the time from the listener that they understand us, even though we are using such clear and concise language.