[plural] [noun]They sent birthday greetings (= good wishes for someone's birthday).(formal) Greetings to you, my friends and colleagues.A (UK) greetings card/(US and ANZ) greeting card is a piece of thick paper folded in half with a picture on the outside and a message inside, which you write in and send or give to someone, for example at Christmas or on their birthday.
GREETINGS
Meaning of GREETINGS in English
Cambridge English vocab. Кембриджский английский словарь. 2012