- Salus populi est suprema lex – The safety of the people is the supreme law.
- Sans recours – With no recourse.
- Sciens – Knowingly.
- Scienter – Knowingly.
- Scire facias – That you cause to know.
- Scribere est agere – To write is to act.
- Se defendendo – In self-defence.
- Secus – The legal position is different, it is otherwise.
- Servitia personalia sequuntur personam – Personal services follow the person.
- Sic utere tuo ut alienum non laedas – So use your own as not to injure another s property.
- Simplex commendatio non obligat – A simple recommendation does not bind
- Sine die – With no appointed date for resumption.
- Sine qua non – An indispensable condition; a thing which is absolutely essential.
- Stare decisis – To stand by decisions. Precedent.
- Status quo – State of things as they are now.
- Stet – Do not delete, let it stand.
- Sub judice – Under the law.
- Sub modo – Within limits.
- Sub nomine – Under the name of.
- Sub silentio – In silence. without any notice being taken
- Sublata causa, tollitur effectus – The cause being removed, the effect ceases.
- Sublato fundamento, cadit opus – The foundation being removed, the structure falls.
- Suggestio falsi – The suggestion of something which is untrue.
- Sui generis – Unique.
- Suo Motu – On its own motion.
- Suppressio veri – The suppression of the truth.
- Suppressio veri expressio falsi – A suppression of truth is equivalent to an expression of falsehood.
