What would be good alternatives that could replace the phrase "greetings?"

Native speaker’s answer
Rebecca
A few words you can use other than "greetings" are "hello," "salutations," "good day," and "hey." "Salutations" is considered quite formal and has a similar tone to "greetings" here. Within everyday use, you can say "good day," "hello," and "hi." Ex: Salutations, friends. Thank you for inviting me here. => very formal, almost dramatic Ex: Good day, students. Open your book to page five. Ex: Hello, everyone! Welcome to the party.