Osnowa
Osnowa is a Polish noun meaning foundation, base, or underlying structure. In literal usage it denotes the lowest, supporting part of something, while in figurative use it designates the core ideas, principles, or components that underpin a system, plan, or argument.
In technical and academic contexts, osnowa can refer to the skeleton or base framework of a project,
Outside of technical contexts, osnowa also appears as a component in toponymy and onomastics. When capitalized,
In non-Polish contexts, the term is less widely used, but cognates and related words with similar meanings