hårfine
Hårfine is a term found in Swedish-language usage to describe something extremely fine, delicate, or narrowly defined. The form is a variant of the more common adjective hårfin, derived from hår ('hair') and fin(e) ('fine'), invoking the image of a width as slim as a single hair. In standard Swedish, hårfin is the prevailing form; hårfine appears chiefly in stylized writing, brand names, or colloquial spellings.
In everyday language, phrases such as hårfin skillnad ('a hair-thin difference') and hårfin gräns ('a razor-thin
While Norwegian and Danish share a closely related form—also expressed as hårfin—the exact spelling may vary
Overall, hårfine is a less common, stylistic variant of hårfin that users may encounter in contemporary Swedish