<p><strong>Verb (used without object)</strong></p><ul><li>seethed or (Obsolete) sod; seethed or (Obsolete) sodden or sod; seething</li><li>to surge or foam as if boiling.</li><li>to be in a state of agitation or excitement.</li><li>Archaic: to boil.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>seethed or (Obsolete) sod; seethed or (Obsolete) sodden or sod; seething</li><li>to soak or steep.</li><li>to cook by boiling or simmering; boil.</li></ul><p><strong>Noun</strong></p><ul><li>the act of seething.</li><li>the state of being agitated or excited.</li></ul>