[sign one's own death warrant] {v. phr.} To cause your own […]

[sign out] {v.} To write your name on a special list […]

[sign over] {v.} To give legally by signing your name. * […]

[sign up] {v.} 1. To promise to do something by signing […]

[simmer down] {v.}, {informal} To become less angry or excited; become […]

[sing a different tune] or [whistle a different tune] also [sing […]

[sing for one's supper] {v. phr.}, {informal} To have to work […]

[sing one's praises] {v. phr.} To extol or praise continuously. * […]

[single out] {v. phr.} To select or choose one from among […]

[sink in] or [soak in] {v.}, {informal} To be completely understood; […]