icon, vector, icon set, line icon, accuracy, alertness, cloud computing, correspondence, e-mail, e-mail inbox, e-mail spam, envelope, exchanging, expressionism, global communications, information equipment, information medium, letter - document, letterbox format, mail, mailbox, message, note - message, note pad, online messaging, report - document, send, sending, anthropomorphic face, anthropomorphic smiley face, avatar, characters, cheerful, discussion, emoticon, emotional series, emotional stress, facial expression, feedback, freshness, happiness, love - emotion, massaging, multimedia, passion, positive emotion, smiling, social gathering, social media icon, talking,