| 1. | to cook or cook in a liquid at or just below the boiling point. |
| 2. | to make a gentle murmuring sound, as liquids cooking just below the boiling point. |
| 3. | to be in a state of subdued or restrained activity, development, excitement, anger, etc.: The town simmered with rumors. |
| 4. | to keep (liquid) in a state approaching boiling. |
| 5. | to cook in a liquid that is kept at or just below the boiling point. |
| 6. | the state or process of simmering. |
| 7. | simmer down,
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simmer (down)
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"I must and will keep shady and quiet till Bret Harte simmers down a little." [Mark Twain, letter, 1871]