1) Force unit 1) Non-SI metric unit 2) Obsolete unit of measurement 
The sthène (symbol sn), sometimes spelled (or misspelled) sthéne or sthene (from the Greek σθένος (sthenos) meaning `force`), is an obsolete unit of force or thrust in the metre–tonne–second system of units (mts) introduced in France in 1919. When proposed by the British Association in 1876, it was called the funal, but the name was .....
[n] - a unit of force equal to 1000 newtons
noun a unit of force equal to 1000 newtons