hi, hullo, howdy, how-do-you-do, hollo, halloing, halloo, holloo, haloo, hulloo, more...

goodbye, farewell, adieu, parting, leave-taking

hi, hey, good morning, good afternoon, good evening, more...

quick, friendly, big, brief, warm, cheery, simple, first, polite, cheerful, casual

"hi!" in a pound,   h i,   salutation starter,   to the world,   forum greeting,   cheery greeting,   casual greeting,   polite greeting,   nice greeting,   street greeting,   hi there,   hi hi,   reunion greeting