<p><strong>Verb</strong></p><ul><li>(used without object) To laugh softly or amusedly, usually with satisfaction.</li><li>To laugh to oneself; to chuckle while reading.</li><li>(Obsolete) To cluck, as a fowl.</li></ul><p><strong>Noun</strong></p><ul><li>A soft laugh, usually of satisfaction.</li><li>(Obsolete) The cluck of a hen.</li></ul>