More specific terms
- NT 6SA Surrealism
- NT 6SB Soul & Funk
- NT 6SC Samba & Bossa Nova
- NT 6SD Schweizerischer Werkbund
- NT 6SF Scuola Romana
- NT 6SG Secession Groups
- NT 6SH Section d’Or
- NT 6SJ Shaker style
- NT 6SK Situationist International
- NT 6SL Soviet style
- NT 6SM Spanish Eclecticism
- NT 6SN De Stijl, Neoplasticism
- NT 6SP Stuckism International
- NT 6SQ Sturm und Drang
- NT 6SR Suprematism
- NT 6SS Swing
- NT 6ST Symbolist / symbolism
- NT 6SU Synthetic Cubism
- NT 6SV Synthetism
- NT 6SW Satirical