招呼 (zhāo hu) means “to call out to; to greet; to say hello to; to inform; to take care of; to take care that one does not”. It is an HSK 4 Chinese word in the HSK 3.0 vocabulary.
他热情地和大家打招呼。
Tā rèqíng de hé dàjiā dǎ zhāohu.
He greeted everyone warmly.
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