obvodu

Obvod is a term used in several Slavic languages, notably Czech and Slovak, with multiple related meanings. It commonly denotes a boundary that surrounds or encloses an area, and in many contexts it refers to the length of that boundary. The form obvodu is the genitive singular (as well as dative and locative in some phrases) used in phrases like "délka obvodu" (length of the boundary) or "obvodu města" (the city’s district).

In geometry, obvod means the perimeter or circumference of a figure: the total length around a two‑dimensional shape. For a circle, it is the circumference; for polygons, it is the sum of the lengths of all sides. In everyday language, obvod can simply refer to the enclosing border of any defined area.

In electrical engineering and related fields, obvod denotes an electrical circuit or a closed path through which electric current can flow. An obvod may include elements such as resistors, capacitors, and sources, and it can be analyzed in series, parallel, or more complex configurations to determine current and voltage.

In geography and administration, obvod is used to describe a district or administrative or electoral constituency within a city or region. Depending on the country and context, it can refer to a municipal district, a planning zone, or an electoral district used for organizing representation and services.

Grammatically, obvod is a masculine noun; its common genitive form is obvodu. The term thus appears in expressions that describe the size, boundary, or function of enclosed areas, circuits, or administrative regions.