síkokkal

Síkokkal is the instrumental plural form of the Hungarian noun sík, meaning a plane or flat surface in geometry. The standard nominative plural is síkok, and by adding the instrumental plural suffix -kkal, the word becomes síkokkal, which translates to “with planes” or “using planes.” The construction is used to indicate means, tools, or conditions under which a task is performed, much like other instrumental expressions in Hungarian.

In practice, síkokkal appears in mathematical, architectural, and engineering language when describing how a figure or space is defined or constrained by planar surfaces. For example, a sentence such as “Három síkkal dolgozunk” means “We work with three planes.” Another example, “A tér három síkkal határolt,” describes a space bounded by three planes. The form shows standard Hungarian grammar: sík (plane) → síkok (plural) → síkokkal (instrumental plural).

Etymology and grammar notes: sík derives from Hungarian for a flat surface; síkok is its plural; the instrumental plural suffix -kkal is attached to the plural form, resulting in the double k spelling síkokkal. While síkokkal is a specialized term used mainly in geometry, CAD, and related fields, it illustrates how Hungarian expresses instrumentality with plural nouns.

See also: geometry, Hungarian grammar, instrumental case, technical drawing.