9S

9s is a string with multiple uses across popular culture and technical notation. In video gaming, 9S refers to YoRHa No. 9 Type S, a scanner-type android central to the story of NieR: Automata. The character is involved in data gathering, hacking, and interactions with other main characters, and appears across the game’s narrative and related media. The designation is commonly written as 9S in spellings used by the game and its community.

In timing and physics notation, 9s can denote nine seconds, with the symbol s representing the unit of time in the International System of Units (SI). Publication style often prescribes a space between the numeral and the unit (9 s), but practices vary by publication or context, and some texts use the compact form 9s.

Beyond these contexts, 9s or 9S may appear as a model or designation in various fictional works and technical naming schemes. Alphanumeric combinations like 9S are frequently used to identify versions, series, or specific units within a larger product line or fictional universe. Because meanings depend on context, it is important to consider the surrounding material to determine how the term is being used.