cleanest

cleanest

1. superlative form of clean: most clean
   • 2020 November 18, “Network News: Network Rail sets science-based global warming targets”, in Rail, page 22:

     Chief executive Andrew Haines said: "Rail is already the cleanest and greenest mode of transporting large numbers of people and goods, but we're committed to cutting our carbon footprint even further. [...]."

cleanest

1. (archaic) second-person singular simple present indicative of clean

• encastle, latences, tenacles