<p><strong>Verb:</strong></p><ul><li>to sniff repeatedly, as from a head cold or in repressing tears: She sniffled woefully.</li></ul><p><strong>Noun:</strong></p><ul><li>an act or sound of sniffling.</li><li>(the) sniffles, a condition, as a cold, marked by sniffling: This draft is giving me the sniffles.</li></ul>