oster kot brítev as sharp as a razor brusač britev razor grinder jermen za brušenje britve (razor) strop klina britve razor blade nabrusiti brítev to grind (ali to set) a razor, to strop one's razor
ostríti(nož, svinčnik) to sharpen;(koso) to whet;(rezilo) to sharpen, to make sharp (ali keen)
ostríti na brusu to grind ostríti britev to grind (ali to set) a razor; (konico) to point