<p><strong>Verb</strong></p><ul><li>to cook or cook in a liquid at or just below the boiling point</li><li>to make a gentle murmuring sound, as liquids cooking just below the boiling point</li><li>to be in a state of subdued or restrained activity, development, excitement, anger, etc.: The town simmered with rumors</li><li>to keep (liquid) in a state approaching boiling</li><li>to cook in a liquid that is kept at or just below the boiling point</li></ul><p><strong>Noun</strong></p><ul><li>the state or process of simmering</li><li>to reduce in volume by simmering</li></ul><p><strong>Verb Phrase</strong></p><ul><li>to become calm or quiet, as from a state of anger or turmoil: We waited for the audience to simmer down</li></ul>