Soli

Solos stands for:

Solidarity surcharge, a surcharge on income tax and corporation tax in Germany
Solidarity Pact, an agreement in the framework of fiscal equalization on payments to the East German states
Solidarity contribution in the former GDR
Solo ( music) (plural: solos ), an element of a piece of music
Cycling and motorist covenant solidarity (1896 based) Solidarity Youth of Germany ( founded in 1954 ), the youth organization