(transitive, idiomatic) To improve. / (transitive) To shine; to make shiny. / (intransitive, idiomatic) To become more muscular. / (intransitive, idiomatic) To study hard to learn a particular subject.

(transitive) To remove paint or light scratches from the surface by friction, wearing it out by polishing or blasting with sand or by employing some similar method.

A kind of leather coat, mainly worn by European cavalry and officers in the 17th century.

plural of buff coat

A yellow ancient artifical iron oxide made by oxidating iron in vinegar, one of the oldest man-made pigments, often used in staining textiles.

(Britain, games) A game where one person is blindfolded and tries to catch the other players.

A type of sandpiper, (Calidris subruficollis)

A species of bumblebee, Bombus terrestris, common across large parts of Europe.

plural of buff-tailed bumblebee

Anthus rubescens, a small songbird found on both sides of the northern Pacific.