<p><strong>Interjection</strong></p><ul><li>(Used to express a greeting, answer a telephone, or attract attention.)</li><li>(An exclamation of surprise, wonder, elation, etc.)</li><li>(Used derisively to question the comprehension, intelligence, or common sense of the person being addressed): "You're gonna go out with him? Hello!"</li></ul><p><strong>Noun</strong></p><ul><li>Plural: hellos.</li><li>The call “hello” (used as an expression of greeting): She gave me a warm hello.</li></ul><p><strong>Verb</strong></p><ul><li>(Used without object) helloed, helloing. To say “hello”; to cry or shout: I helloed, but no one answered.</li><li>(Used with object) helloed, helloing. To say “hello” to (someone): We helloed each other as though nothing had happened.</li></ul>