noun
a conventional expression of greeting or farewell
• Syn: ↑morning
• Hypernyms: ↑greeting, ↑salutation, ↑farewell, ↑word of farewell
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interj
— used to say hello to someone in the morning
Good morning. How are you today?
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used to say hello politely when people first see each other in the morning (in informal use people often just say Morning in this case); sometimes also used formally when people leave each other in the morning
Useful english dictionary. 2012.