← BackshareGuesshillo/hɪˈloʊ/interjectionA call used to attract attention or to express greeting; a variant of 'hello' or 'hallo'.Hillo there! I didn't see you coming.He shouted 'Hillo!' across the field to get his friend's attention.Hillo! Is anyone home?SynonymshellohiheyAntonymsgoodbye