When Ziz[0] meets Ziz[5],that is, Σ meets Ξ

When Ziz[0] meets Ziz[5],that is, Σ meets Ξ, it usually means three things:
Σ Ziz Vivoran restrain Ξ Ziz Umbanova, abbreviation is Σ RST Ξ
Σ Ziz Vivoran overpower Ξ Ziz Umbanova, abbreviation is Σ OVP Ξ
Σ Ziz Vivoran be reversed Ξ Ziz Umbanova, abbreviation is Σ REVed Ξ