ଅର୍ଥ : A shout to attract attention.
ଉଦାହରଣ :
He gave a great halloo but no one heard him.
ଅର୍ଥ : Urge on with shouts.
ଉଦାହରଣ :
Halloo the dogs in a hunt.
ଅର୍ଥ : Shout `halloo', as when greeting someone or attracting attention.